chore(deps): update actions/checkout action to v5

This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| [lazy-object-proxy](https://github.com/ionelmc/python-lazy-object-proxy) ([changelog](https://python-lazy-object-proxy.readthedocs.io/en/latest/changelog.html)) | `==1.11.0` -> `==1.12.0` | [![age](https://developer.mend.io/api/mc/badges/age/pypi/lazy-object-proxy/1.12.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/lazy-object-proxy/1.11.0/1.12.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>ionelmc/python-lazy-object-proxy (lazy-object-proxy)</summary>

### [`v1.12.0`](https://github.com/ionelmc/python-lazy-object-proxy/blob/HEAD/CHANGELOG.rst#1120-2025-08-22)

[Compare Source](https://github.com/ionelmc/python-lazy-object-proxy/compare/v1.11.0...v1.12.0)

- Fixed testing issues when C extensions are not desired.
  Contributed by Michał Górny in `#&#8203;79 <https://github.com/ionelmc/python-lazy-object-proxy/pull/79>`\_.
- Added support for GraalPy.
  Contributed by Michael Šimáček in `#&#8203;87 <https://github.com/ionelmc/python-lazy-object-proxy/pull/87>`\_.
- Fixed testing issues on Python 3.14.
  Contributed by Michał Górny in `#&#8203;88 <https://github.com/ionelmc/python-lazy-object-proxy/pull/88>`\_.
- Modernized packaging to have metadata in `pyproject.toml`.
- Added Python 3.14 wheels.

</details>

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### Configuration

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pyproject.toml

@@ -17,7 +17,7 @@ dependencies = [
     "exceptiongroup==1.3.0",
     "idna==3.10",
     "iniconfig==2.1.0",
-    "lazy-object-proxy==1.11.0",
+    "lazy-object-proxy==1.12.0",
     "mccabe==0.7.0",
     "mypy-extensions==1.1.0",
     "packaging==25.0",