This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [astral-sh/uv](https://github.com/astral-sh/uv) | patch | `0.7.16` -> `0.7.19` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

---

### Release Notes

<details>
<summary>astral-sh/uv (astral-sh/uv)</summary>

### [`v0.7.19`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0719)

[Compare Source](astral-sh/uv@0.7.18...0.7.19)

The **[uv build backend](https://docs.astral.sh/uv/concepts/build-backend/) is now stable**, and considered ready for production use.

The uv build backend is a great choice for pure Python projects. It has reasonable defaults, with the goal of requiring zero configuration for most users, but provides flexible configuration to accommodate most Python project structures. It integrates tightly with uv, to improve messaging and user experience. It validates project metadata and structures, preventing common mistakes. And, finally, it's very fast — `uv sync` on a new project (from `uv init`) is 10-30x faster than with other build backends.

To use uv as a build backend in an existing project, add `uv_build` to the `[build-system]` section in your `pyproject.toml`:

```toml
[build-system]
requires = ["uv_build>=0.7.19,<0.8.0"]
build-backend = "uv_build"
```

In a future release, it will replace `hatchling` as the default in `uv init`. As before, uv will remain compatible with all standards-compliant build backends.

##### Python

- Add PGO distributions of Python for aarch64 Linux, which are more optimized for better performance

See the [python-build-standalone release](https://github.com/astral-sh/python-build-standalone/releases/tag/20250702) for more details.

##### Enhancements

- Ignore Python patch version for `--universal` pip compile ([#&#8203;14405](astral-sh/uv#14405))
- Update the tilde version specifier warning to include more context ([#&#8203;14335](astral-sh/uv#14335))
- Clarify behavior and hint on tool install when no executables are available ([#&#8203;14423](astral-sh/uv#14423))

##### Bug fixes

- Make project and interpreter lock acquisition non-fatal ([#&#8203;14404](astral-sh/uv#14404))
- Includes `sys.prefix` in cached environment keys to avoid `--with` collisions across projects ([#&#8203;14403](astral-sh/uv#14403))

##### Documentation

- Add a migration guide from pip to uv projects ([#&#8203;12382](astral-sh/uv#12382))

### [`v0.7.18`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0718)

[Compare Source](astral-sh/uv@0.7.17...0.7.18)

##### Python

- Added arm64 Windows Python 3.11, 3.12, 3.13, and 3.14

  These are not downloaded by default, since x86-64 Python has broader ecosystem support on Windows.
  However, they can be requested with `cpython-<version>-windows-aarch64`.

See the [python-build-standalone release](https://github.com/astral-sh/python-build-standalone/releases/tag/20250630) for more details.

##### Enhancements

- Keep track of retries in `ManagedPythonDownload::fetch_with_retry` ([#&#8203;14378](astral-sh/uv#14378))
- Reuse build (virtual) environments across resolution and installation ([#&#8203;14338](astral-sh/uv#14338))
- Improve trace message for cached Python interpreter query ([#&#8203;14328](astral-sh/uv#14328))
- Use parsed URLs for conflicting URL error message ([#&#8203;14380](astral-sh/uv#14380))

##### Preview features

- Ignore invalid build backend settings when not building ([#&#8203;14372](astral-sh/uv#14372))

##### Bug fixes

- Fix equals-star and tilde-equals with `python_version` and `python_full_version` ([#&#8203;14271](astral-sh/uv#14271))
- Include the canonical path in the interpreter query cache key ([#&#8203;14331](astral-sh/uv#14331))
- Only drop build directories on program exit ([#&#8203;14304](astral-sh/uv#14304))
- Error instead of panic on conflict between global and subcommand flags ([#&#8203;14368](astral-sh/uv#14368))
- Consistently normalize trailing slashes on URLs with no path segments ([#&#8203;14349](astral-sh/uv#14349))

##### Documentation

- Add instructions for publishing to JFrog's Artifactory ([#&#8203;14253](astral-sh/uv#14253))
- Edits to the build backend documentation ([#&#8203;14376](astral-sh/uv#14376))

### [`v0.7.17`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0717)

[Compare Source](astral-sh/uv@0.7.16...0.7.17)

##### Bug fixes

- Apply build constraints when resolving `--with` dependencies ([#&#8203;14340](astral-sh/uv#14340))
- Drop trailing slashes when converting index URL from URL ([#&#8203;14346](astral-sh/uv#14346))
- Ignore `UV_PYTHON_CACHE_DIR` when empty ([#&#8203;14336](astral-sh/uv#14336))
- Fix error message ordering for `pyvenv.cfg` version conflict ([#&#8203;14329](astral-sh/uv#14329))

</details>

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)"

This reverts commit 734b228.

Reverts:

- #14349
- #14346
- #14245

Retains the test cases. Includes a `find-links` test case.

Supersedes

- #14387
- #14503

We originally got a report at
#13707 that inclusion of a
trailing slash on an index URL was causing lockfile churn despite having
no semantic meaning and resolved the issue by adding normalization that
stripped trailing slashes at parse time.

We then discovered that, while there are not semantic differences for
trailing slashes on Simple API index URLs, there are differences for
some flat (or find links) indexes. As reported in
#14367, the change in
#14245 caused a regression for at
least one user.

We attempted to fix the regression via a few approaches.

#14387 attempted to differentiate
between Simple API and flat index URL parsing, but failed to account for
the `Deserialize` implementation, which always assumed Simple API-style
index URLs and incorrectly trimmed trailing slashes in various cases
where we deserialized the `IndexUrl` type from a file. I attempted to
resolve this by performing a larger refactor, but it ended up being
quite painful. In particular, the `Index` type was a blocker — we don't
know the `IndexUrl` variant until we've parsed the `IndexFormat` and
having a multi-stage deserializer is not appealing but adding a new
intermediate type (i.e., `RawIndex`) is painful due to the pervasiveness
of `Index`. Given that we've regressed behavior here and there's not a
straight-forward fix, we're reverting the normalization entirely.

#14503 attempted to perform
normalization at compare-time, but that means we'd fail to invalidate
the lockfile when the a trailing slash was added or removed and given
that a trailing slash has semantic meaning for a find-links URL... we'd
have another correctness problem.

After this revert, we'll retain all index URLs verbatim. The downside to
this approach is that we'll be adding a bunch of trailing slashes back
to lockfiles that we previously normalized out, and we'll be reverting
our fix for users with inconsistent trailing slashes on their index
URLs. Users affected by the original motivating issue should use
consistent trailing slashes on their URLs, as they do frequently have
semantic meaning. We may want to revisit normalization and type aware
index URL parsing as part of a larger change.

Closes  #14367