'Parsed object has no attribute list_dependencies' on tox 4.6.2 when following guidance for testing EOL python versions

## Issue

After upgrading to tox 4.6.0+ started seeing the following errors when performing a `tox list` command. 

`AttributeError: 'Parsed' object has no attribute 'list_dependencies'`

This only occurs if there is a `requires` element in the `[tox]` section of the configuration ini. The one in this case is `requires = virtualenv<20.22.0` which is being used to test EOL Python versions per the tox FAQ.

Looks like the settings querying done by https://github.com/tox-dev/tox/pull/3024 should be performing a `.get` rather than expect the value to always be there.

## Environment

Provide at least:

- OS: Windows 10 x64, Python 3.11.2 x64

<details open>
<summary>Output of <code>pip list</code> of the host Python, where <code>tox</code> is installed</summary>

```console
(test_env) C:\Projects\simpleproject>pip list
Package       Version
------------- -------
cachetools    5.3.1
chardet       5.1.0
colorama      0.4.6
distlib       0.3.6
filelock      3.12.2
packaging     23.1
pip           23.1.2
platformdirs  3.5.3
pluggy        1.0.0
pyproject-api 1.5.2
setuptools    67.8.0
tox           4.6.2
virtualenv    20.23.1
wheel         0.40.0
```

</details>

## Output of running tox

<details open>
<summary>Output of <code>tox -rvv</code></summary>

```console
(test_env) C:\Projects\simpleproject>tox list -rvv
ROOT: 796 W will run in automatically provisioned tox, host C:\Projects\test_env\Scripts\python.exe is missing [requires (has)]: virtualenv<20.22.0 (20.23.1) [tox\provision.py:125]
ROOT: 828 I find interpreter for spec PythonSpec(path=C:\Projects\test_env\Scripts\python.exe) [virtualenv\discovery\builtin.py:58]
ROOT: 828 D got python info of %s from (WindowsPath('C:/Python311x64/python.exe'), WindowsPath('C:/Users/dev/AppData/Local/pypa/virtualenv/py_info/1/466d3831b321449d78c94ed99affac38a772e29cc437bae341ba817d9a397f45.json')) [virtualenv\app_data\via_disk_folder.py:131]
ROOT: 828 I proposed PythonInfo(spec=CPython3.11.4.final.0-64, system=C:\Python311x64\python.exe, exe=C:\Projects\test_env\Scripts\python.exe, platform=win32, version='3.11.4 (tags/v3.11.4:d2340ef, Jun  7 2023, 05:45:37) [MSC v.1934 64 bit (AMD64)]', encoding_fs_io=utf-8-cp1252) [virtualenv\discovery\builtin.py:65]
ROOT: 828 D accepted PythonInfo(spec=CPython3.11.4.final.0-64, system=C:\Python311x64\python.exe, exe=C:\Projects\test_env\Scripts\python.exe, platform=win32, version='3.11.4 (tags/v3.11.4:d2340ef, Jun  7 2023, 05:45:37) [MSC v.1934 64 bit (AMD64)]', encoding_fs_io=utf-8-cp1252) [virtualenv\discovery\builtin.py:67]
ROOT: 843 D symlink on filesystem does not work [virtualenv\info.py:45]
ROOT: 843 D filesystem is not case-sensitive [virtualenv\info.py:26]
ROOT: 952 I will run in a automatically provisioned python environment under C:\Projects\simpleproject\.tox\.tox\Scripts\python.exe [tox\provision.py:146]
ROOT: 952 W remove tox env folder C:\Projects\simpleproject\.tox\.tox [tox\tox_env\api.py:322]
ROOT: 1578 I create virtual environment via CPython3Windows(dest=C:\Projects\simpleproject\.tox\.tox, clear=False, no_vcs_ignore=False, global=False) [virtualenv\run\session.py:50]
ROOT: 1578 D create folder C:\Projects\simpleproject\.tox\.tox\Lib\site-packages [virtualenv\util\path\_sync.py:12]
ROOT: 1593 D create folder C:\Projects\simpleproject\.tox\.tox\Scripts [virtualenv\util\path\_sync.py:12]
ROOT: 1593 D write C:\Projects\simpleproject\.tox\.tox\pyvenv.cfg [virtualenv\create\pyenv_cfg.py:32]
ROOT: 1593 D    home = C:\Python311x64 [virtualenv\create\pyenv_cfg.py:36]
ROOT: 1593 D    implementation = CPython [virtualenv\create\pyenv_cfg.py:36]
ROOT: 1593 D    version_info = 3.11.4.final.0 [virtualenv\create\pyenv_cfg.py:36]
ROOT: 1593 D    virtualenv = 20.23.1 [virtualenv\create\pyenv_cfg.py:36]
ROOT: 1593 D    include-system-site-packages = false [virtualenv\create\pyenv_cfg.py:36]
ROOT: 1593 D    base-prefix = C:\Python311x64 [virtualenv\create\pyenv_cfg.py:36]
ROOT: 1593 D    base-exec-prefix = C:\Python311x64 [virtualenv\create\pyenv_cfg.py:36]
ROOT: 1593 D    base-executable = C:\Python311x64\python.exe [virtualenv\create\pyenv_cfg.py:36]
ROOT: 1609 D copy C:\Python311x64\Lib\venv\scripts\nt\python.exe to C:\Projects\simpleproject\.tox\.tox\Scripts\python.exe [virtualenv\util\path\_sync.py:40]
ROOT: 1656 D copy C:\Python311x64\Lib\venv\scripts\nt\pythonw.exe to C:\Projects\simpleproject\.tox\.tox\Scripts\pythonw.exe [virtualenv\util\path\_sync.py:40]
ROOT: 1703 D create virtualenv import hook file C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\_virtualenv.pth [virtualenv\create\via_global_ref\api.py:91]
ROOT: 1718 D create C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\_virtualenv.py [virtualenv\create\via_global_ref\api.py:94]
ROOT: 1718 D ============================== target debug ============================== [virtualenv\run\session.py:52]
ROOT: 1718 D debug via 'C:\Projects\simpleproject\.tox\.tox\Scripts\python.exe' 'C:\Projects\test_env\Lib\site-packages\virtualenv\create\debug.py' [virtualenv\create\creator.py:200]
ROOT: 1718 D {
  "sys": {
    "executable": "C:\\Projects\\simpleproject\\.tox\\.tox\\Scripts\\python.exe",
    "_base_executable": "C:\\Python311x64\\python.exe",
    "prefix": "C:\\Projects\\simpleproject\\.tox\\.tox",
    "base_prefix": "C:\\Python311x64",
    "real_prefix": null,
    "exec_prefix": "C:\\Projects\\simpleproject\\.tox\\.tox",
    "base_exec_prefix": "C:\\Python311x64",
    "path": [
      "C:\\Python311x64\\python311.zip",
      "C:\\Python311x64\\DLLs",
      "C:\\Python311x64\\Lib",
      "C:\\Python311x64",
      "C:\\Projects\\simpleproject\\.tox\\.tox",
      "C:\\Projects\\simpleproject\\.tox\\.tox\\Lib\\site-packages"
    ],
    "meta_path": [
      "<class '_virtualenv._Finder'>",
      "<class '_frozen_importlib.BuiltinImporter'>",
      "<class '_frozen_importlib.FrozenImporter'>",
      "<class '_frozen_importlib_external.PathFinder'>"
    ],
    "fs_encoding": "utf-8",
    "io_encoding": "cp1252"
  },
  "version": "3.11.4 (tags/v3.11.4:d2340ef, Jun  7 2023, 05:45:37) [MSC v.1934 64 bit (AMD64)]",
  "makefile_filename": "C:\\Python311x64\\Lib\\config\\Makefile",
  "os": "<module 'os' (frozen)>",
  "site": "<module 'site' (frozen)>",
  "datetime": "<module 'datetime' from 'C:\\\\Python311x64\\\\Lib\\\\datetime.py'>",
  "math": "<module 'math' (built-in)>",
  "json": "<module 'json' from 'C:\\\\Python311x64\\\\Lib\\\\json\\\\__init__.py'>"
} [virtualenv\run\session.py:53]
ROOT: 1953 I add seed packages via FromAppData(download=False, pip=bundle, setuptools=bundle, wheel=bundle, via=copy, app_data_dir=C:\Users\dev\AppData\Local\pypa\virtualenv) [virtualenv\run\session.py:57]
ROOT: 1968 D install pip from wheel C:\Projects\test_env\Lib\site-packages\virtualenv\seed\wheels\embed\pip-23.1.2-py3-none-any.whl via CopyPipInstall [virtualenv\seed\embed\via_app_data\via_app_data.py:49]
ROOT: 1968 D install setuptools from wheel C:\Projects\test_env\Lib\site-packages\virtualenv\seed\wheels\embed\setuptools-67.8.0-py3-none-any.whl via CopyPipInstall [virtualenv\seed\embed\via_app_data\via_app_data.py:49]
ROOT: 1968 D install wheel from wheel C:\Projects\test_env\Lib\site-packages\virtualenv\seed\wheels\embed\wheel-0.40.0-py3-none-any.whl via CopyPipInstall [virtualenv\seed\embed\via_app_data\via_app_data.py:49]
ROOT: 1984 D copy directory C:\Users\dev\AppData\Local\pypa\virtualenv\wheel\3.11\image\1\CopyPipInstall\pip-23.1.2-py3-none-any\pip to C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\pip [virtualenv\util\path\_sync.py:40]
ROOT: 1984 D copy C:\Users\dev\AppData\Local\pypa\virtualenv\wheel\3.11\image\1\CopyPipInstall\setuptools-67.8.0-py3-none-any\distutils-precedence.pth to C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\distutils-precedence.pth [virtualenv\util\path\_sync.py:40]
ROOT: 1984 D copy directory C:\Users\dev\AppData\Local\pypa\virtualenv\wheel\3.11\image\1\CopyPipInstall\wheel-0.40.0-py3-none-any\wheel to C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\wheel [virtualenv\util\path\_sync.py:40]
ROOT: 2000 D copy directory C:\Users\dev\AppData\Local\pypa\virtualenv\wheel\3.11\image\1\CopyPipInstall\setuptools-67.8.0-py3-none-any\pkg_resources to C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\pkg_resources [virtualenv\util\path\_sync.py:40]
ROOT: 2203 D copy directory C:\Users\dev\AppData\Local\pypa\virtualenv\wheel\3.11\image\1\CopyPipInstall\wheel-0.40.0-py3-none-any\wheel-0.40.0.dist-info to C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\wheel-0.40.0.dist-info [virtualenv\util\path\_sync.py:40]
ROOT: 2249 D copy C:\Users\dev\AppData\Local\pypa\virtualenv\wheel\3.11\image\1\CopyPipInstall\wheel-0.40.0-py3-none-any\wheel-0.40.0.virtualenv to C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\wheel-0.40.0.virtualenv [virtualenv\util\path\_sync.py:40]
ROOT: 2421 D generated console scripts wheel3.exe wheel-3.11.exe wheel.exe wheel3.11.exe [virtualenv\seed\embed\via_app_data\pip_install\base.py:43]
ROOT: 2436 D copy directory C:\Users\dev\AppData\Local\pypa\virtualenv\wheel\3.11\image\1\CopyPipInstall\setuptools-67.8.0-py3-none-any\setuptools to C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\setuptools [virtualenv\util\path\_sync.py:40]
ROOT: 4311 D copy directory C:\Users\dev\AppData\Local\pypa\virtualenv\wheel\3.11\image\1\CopyPipInstall\setuptools-67.8.0-py3-none-any\setuptools-67.8.0.dist-info to C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\setuptools-67.8.0.dist-info [virtualenv\util\path\_sync.py:40]
ROOT: 4358 D copy C:\Users\dev\AppData\Local\pypa\virtualenv\wheel\3.11\image\1\CopyPipInstall\setuptools-67.8.0-py3-none-any\setuptools-67.8.0.virtualenv to C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\setuptools-67.8.0.virtualenv [virtualenv\util\path\_sync.py:40]
ROOT: 4358 D copy directory C:\Users\dev\AppData\Local\pypa\virtualenv\wheel\3.11\image\1\CopyPipInstall\setuptools-67.8.0-py3-none-any\_distutils_hack to C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\_distutils_hack [virtualenv\util\path\_sync.py:40]
ROOT: 4374 D generated console scripts  [virtualenv\seed\embed\via_app_data\pip_install\base.py:43]
ROOT: 6233 D copy directory C:\Users\dev\AppData\Local\pypa\virtualenv\wheel\3.11\image\1\CopyPipInstall\pip-23.1.2-py3-none-any\pip-23.1.2.dist-info to C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\pip-23.1.2.dist-info [virtualenv\util\path\_sync.py:40]
ROOT: 6280 D copy C:\Users\dev\AppData\Local\pypa\virtualenv\wheel\3.11\image\1\CopyPipInstall\pip-23.1.2-py3-none-any\pip-23.1.2.virtualenv to C:\Projects\simpleproject\.tox\.tox\Lib\site-packages\pip-23.1.2.virtualenv [virtualenv\util\path\_sync.py:40]
ROOT: 6452 D generated console scripts pip3.exe pip-3.11.exe pip3.11.exe pip.exe [virtualenv\seed\embed\via_app_data\pip_install\base.py:43]
ROOT: 6452 I add activators for Bash, Batch, Fish, Nushell, PowerShell, Python [virtualenv\run\session.py:63]
ROOT: 6499 D write C:\Projects\simpleproject\.tox\.tox\pyvenv.cfg [virtualenv\create\pyenv_cfg.py:32]
ROOT: 6499 D    home = C:\Python311x64 [virtualenv\create\pyenv_cfg.py:36]
ROOT: 6515 D    implementation = CPython [virtualenv\create\pyenv_cfg.py:36]
ROOT: 6515 D    version_info = 3.11.4.final.0 [virtualenv\create\pyenv_cfg.py:36]
ROOT: 6515 D    virtualenv = 20.23.1 [virtualenv\create\pyenv_cfg.py:36]
ROOT: 6515 D    include-system-site-packages = false [virtualenv\create\pyenv_cfg.py:36]
ROOT: 6515 D    base-prefix = C:\Python311x64 [virtualenv\create\pyenv_cfg.py:36]
ROOT: 6515 D    base-exec-prefix = C:\Python311x64 [virtualenv\create\pyenv_cfg.py:36]
ROOT: 6515 D    base-executable = C:\Python311x64\python.exe [virtualenv\create\pyenv_cfg.py:36]
ROOT: 6530 W install_deps> python -I -m pip install tox virtualenv<20.22.0 [tox\tox_env\api.py:427]
Looking in indexes: https://pypi.org/simple/
Collecting tox
  Using cached https://pypi.org/packages/3c/d7/092d1293f4bc30cd5c4532cdfb459c652b676f254750bb1fe04ec743c800/tox-4.6.2-py3-none-any.whl (151 kB)
Collecting virtualenv<20.22.0
  Using cached https://pypi.org/packages/fb/9b/445412c769289c18a5f9c2e8c816c1369f6c5fae4802f2196e5aef7630fd/virtualenv-20.21.1-py3-none-any.whl (8.7 MB)
Collecting cachetools>=5.3.1 (from tox)
  Using cached https://pypi.org/packages/a9/c9/c8a7710f2cedcb1db9224fdd4d8307c9e48cbddc46c18b515fefc0f1abbe/cachetools-5.3.1-py3-none-any.whl (9.3 kB)
Collecting chardet>=5.1 (from tox)
  Using cached https://pypi.org/packages/74/8f/8fc49109009e8d2169d94d72e6b1f4cd45c13d147ba7d6170fb41f22b08f/chardet-5.1.0-py3-none-any.whl (199 kB)
Collecting colorama>=0.4.6 (from tox)
  Using cached https://pypi.org/packages/d1/d6/3965ed04c63042e047cb6a3e6ed1a63a35087b6a609aa3a15ed8ac56c221/colorama-0.4.6-py2.py3-none-any.whl (25 kB)
Collecting filelock>=3.12.2 (from tox)
  Using cached https://pypi.org/packages/00/45/ec3407adf6f6b5bf867a4462b2b0af27597a26bd3cd6e2534cb6ab029938/filelock-3.12.2-py3-none-any.whl (10 kB)
Collecting packaging>=23.1 (from tox)
  Using cached https://pypi.org/packages/ab/c3/57f0601a2d4fe15de7a553c00adbc901425661bf048f2a22dfc500caf121/packaging-23.1-py3-none-any.whl (48 kB)
Collecting platformdirs>=3.5.3 (from tox)
  Using cached https://pypi.org/packages/6d/1a/96efea7b36835ce89911d7813fe68f5b1db7ecae4023bf209a7aeba93017/platformdirs-3.5.3-py3-none-any.whl (15 kB)
Collecting pluggy>=1 (from tox)
  Using cached https://pypi.org/packages/9e/01/f38e2ff29715251cf25532b9082a1589ab7e4f571ced434f98d0139336dc/pluggy-1.0.0-py2.py3-none-any.whl (13 kB)
Collecting pyproject-api>=1.5.2 (from tox)
  Using cached https://pypi.org/packages/ce/a7/0666a457fe35518d998448a6606b5f66c4bf092864bac6ef7fc380da582b/pyproject_api-1.5.2-py3-none-any.whl (12 kB)
INFO: pip is looking at multiple versions of tox to determine which version is compatible with other requirements. This could take a while.
Collecting tox
  Using cached https://pypi.org/packages/ac/78/25ccd23e1755e3d86a77272f1e5192a48a7333c4c4e79076c753d34da8ea/tox-4.6.1-py3-none-any.whl (151 kB)
  Using cached https://pypi.org/packages/25/a2/bd10aec8c560e97fd6fc0ae044a42dc2d1095fdb3c56d8965ac68c69aa22/tox-4.6.0-py3-none-any.whl (148 kB)
  Using cached https://pypi.org/packages/eb/2a/1cf03754356acd0fa2d89c825878e499072488a455e57554db262d9bcd93/tox-4.5.2-py3-none-any.whl (148 kB)
  Using cached https://pypi.org/packages/29/eb/5a56994b37d9141a6c7fa6ddb5c76a50b234a424eae4e79c56f33b61c686/tox-4.5.1-py3-none-any.whl (148 kB)
Collecting distlib<1,>=0.3.6 (from virtualenv<20.22.0)
  Using cached https://pypi.org/packages/76/cb/6bbd2b10170ed991cf64e8c8b85e01f2fb38f95d1bc77617569e0b0b26ac/distlib-0.3.6-py2.py3-none-any.whl (468 kB)
Installing collected packages: distlib, pluggy, platformdirs, packaging, filelock, colorama, chardet, cachetools, virtualenv, pyproject-api, tox
Successfully installed cachetools-5.3.1 chardet-5.1.0 colorama-0.4.6 distlib-0.3.6 filelock-3.12.2 packaging-23.1 platformdirs-3.5.3 pluggy-1.0.0 pyproject-api-1.5.2 tox-4.5.1 virtualenv-20.21.1
ROOT: 24993 I exit 0 (18.44 seconds) C:\Projects\simpleproject> python -I -m pip install tox virtualenv<20.22.0 pid=2992 [tox\execute\api.py:279]
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Projects\test_env\Lib\site-packages\tox\__main__.py", line 6, in <module>
    run()
  File "C:\Projects\test_env\Lib\site-packages\tox\run.py", line 19, in run
    result = main(sys.argv[1:] if args is None else args)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Projects\test_env\Lib\site-packages\tox\run.py", line 41, in main
    result = provision(state)
             ^^^^^^^^^^^^^^^^
  File "C:\Projects\test_env\Lib\site-packages\tox\provision.py", line 126, in provision
    return run_provision(provision_tox_env, state)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Projects\test_env\Lib\site-packages\tox\provision.py", line 148, in run_provision
    tox_env.setup()
  File "C:\Projects\test_env\Lib\site-packages\tox\tox_env\api.py", line 256, in setup
    self._done_with_setup()
  File "C:\Projects\test_env\Lib\site-packages\tox\tox_env\python\api.py", line 231, in _done_with_setup
    if self.journal or self.options.list_dependencies:
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'Parsed' object has no attribute 'list_dependencies'
```

</details>

## Minimal example

pyproject.toml
```console
[build-system]
build-backend = "hatchling.build"
requires = ["hatchling"]

[project]
name = "simpleproject"
version="1.0.0"
requires-python = ">=3.6"

[tool.hatch]
build.dev-mode-dirs = ["src"]
build.targets.sdist.include = ["/src", "/tests", "/tox.ini"]

[tool.black]
line-length = 120
```

tox.ini
```console
[tox]
distshare={toxworkdir}/distshare
requires = virtualenv<20.22.0

[testenv]
description = Run a testenv

[testenv:something]
install_command = python -m pip install {opts} {packages}
```


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Uh oh!

'Parsed object has no attribute list_dependencies' on tox 4.6.2 when following guidance for testing EOL python versions #3042

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Uh oh!

'Parsed object has no attribute list_dependencies' on tox 4.6.2 when following guidance for testing EOL python versions #3042

Description

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Output of running tox

Minimal example

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