Deps: Bump the dependencies group across 1 directory with 4 updates

Bumps the dependencies group with 4 updates in the /pr-conventional-commit-labeler directory: [lxml](https://github.com/lxml/lxml), [platformdirs](https://github.com/platformdirs/platformdirs), [ruff](https://github.com/astral-sh/ruff) and [tomlkit](https://github.com/sdispater/tomlkit).


Updates `lxml` from 5.2.1 to 5.2.2
- [Release notes](https://github.com/lxml/lxml/releases)
- [Changelog](https://github.com/lxml/lxml/blob/master/CHANGES.txt)
- [Commits](lxml/lxml@lxml-5.2.1...lxml-5.2.2)

Updates `platformdirs` from 4.2.1 to 4.2.2
- [Release notes](https://github.com/platformdirs/platformdirs/releases)
- [Changelog](https://github.com/platformdirs/platformdirs/blob/main/CHANGES.rst)
- [Commits](platformdirs/platformdirs@4.2.1...4.2.2)

Updates `ruff` from 0.4.3 to 0.4.4
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@v0.4.3...v0.4.4)

Updates `tomlkit` from 0.12.4 to 0.12.5
- [Release notes](https://github.com/sdispater/tomlkit/releases)
- [Changelog](https://github.com/python-poetry/tomlkit/blob/master/CHANGELOG.md)
- [Commits](python-poetry/tomlkit@0.12.4...0.12.5)

---
updated-dependencies:
- dependency-name: lxml
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: dependencies
- dependency-name: platformdirs
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: dependencies
- dependency-name: ruff
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: dependencies
- dependency-name: tomlkit
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

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