chore(deps): bump the python-packages group with 3 updates

Bumps the python-packages group with 3 updates: [black](https://github.com/psf/black), [pytest](https://github.com/pytest-dev/pytest) and [platformdirs](https://github.com/tox-dev/platformdirs).


Updates `black` from 25.11.0 to 25.12.0
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](https://github.com/psf/black/compare/25.11.0...25.12.0)

Updates `pytest` from 9.0.1 to 9.0.2
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/9.0.1...9.0.2)

Updates `platformdirs` from 4.5.0 to 4.5.1
- [Release notes](https://github.com/tox-dev/platformdirs/releases)
- [Changelog](https://github.com/tox-dev/platformdirs/blob/main/CHANGES.rst)
- [Commits](https://github.com/tox-dev/platformdirs/compare/4.5.0...4.5.1)

---
updated-dependencies:
- dependency-name: black
  dependency-version: 25.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: python-packages
- dependency-name: pytest
  dependency-version: 9.0.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: platformdirs
  dependency-version: 4.5.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python-packages
...

Signed-off-by: dependabot[bot] <support@github.com>

release-requirements.txt

@@ -1,5 +1,5 @@
 autopep8==2.3.2
-black==25.11.0
+black==25.12.0
 bleach==6.3.0
 certifi==2025.11.12
 charset-normalizer==3.4.4
@@ -8,7 +8,7 @@ colorama==0.4.6
 docutils==0.22.3
 flake8==7.3.0
 gitchangelog==3.0.4
-pytest==9.0.1
+pytest==9.0.2
 idna==3.11
 importlib-metadata==8.7.0
 jaraco.classes==3.4.0
@@ -21,7 +21,7 @@ mypy-extensions==1.1.0
 packaging==25.0
 pathspec==0.12.1
 pkginfo==1.12.1.2
-platformdirs==4.5.0
+platformdirs==4.5.1
 pycodestyle==2.14.0
 pyflakes==3.4.0
 Pygments==2.19.2