This just cleans up the code and moves more logic from the
repository_rule
(i.e. generation of `BUILD.bazel` files) to loading time (macro
evaluation).
This makes the unit testing easier and I plan to also move the code that
is
generating config setting names from filenames to this new macro, but
wanted to
submit this PR to reduce the review chunks.

Summary:
- Add a new `pkg_aliases` macro.
- Move logic and tests for creating WORKSPACE aliases.
- Move logic and tests bzlmod aliases.
- Move logic and tests bzlmod aliases with groups.
- Add a test for extra alias creation.
- Use `whl_alias` in `pypi` extension integration tests.
- Improve the serialization of `whl_alias` for passing to the pypi hub
repo.

Related to #260, #2386, #2337, #2319 - hopefully cleaning the code up
will make
it easier to address those feature requests later.

---------

Co-authored-by: Richard Levasseur <richardlev@gmail.com>

…2404)

This removes Bazel 6 and adds last_rc (Bazel 8) in our BCR presubmit
config. Right now, BCR releases fail because they try to test with Bazel
6, which doesn't work.

This allows us to drop the patch for removing native.sh_binary

Work towards #2378

`requirements_linux.txt` in the same folder should be used instead.

Fixes #2242

Run the bzlmod example with last_rc to match the BCR config. This should
help catch any
issues before a BCR release occurs.

Along the way, cleanup the extraneous pystar configs. The rules_python
Starlark
implementation is enabled by default, and disabling it is unsupported.

The ProtoInfo was removed in Bazel 9, but earlier versions of
rules_proto still refer to it.

This was fixed in rules_proto 7.0.0.

Fixes #2400

---------

Co-authored-by: Ivo List <ilist@google.com>

The collect_imports() function added import strings from BuiltinPyInfo
if it was non-None.
However, operator precedence caused the `if-else` ternary to ignore both
list comprehensions
(one for PyInfo and one for BuiltinPyInfo) if BuiltinPyInfo was None.

To fix, I rewrote the function as a regular for loop to eliminate the
ambiguous looking
ternary expression.

Fixes: #2414

Someone one Slack asked if this was possible and how to do, so document
it for better
visibility. There's a lot of flags, so its easy to not see how to do
this.

Add new version links and headers