Bump platformdirs from 4.5.1 to 4.6.0 (#22)

Bumps [platformdirs](https://github.com/tox-dev/platformdirs) from 4.5.1 to 4.6.0.
- [Release notes](https://github.com/tox-dev/platformdirs/releases)
- [Changelog](https://github.com/tox-dev/platformdirs/blob/main/CHANGES.rst)
- [Commits](tox-dev/platformdirs@4.5.1...4.6.0)

---
updated-dependencies:
- dependency-name: platformdirs
  dependency-version: 4.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements.txt

@@ -6,7 +6,7 @@ identify==2.6.16
 iniconfig==2.3.0
 nodeenv==1.10.0
 packaging==26.0
-platformdirs==4.5.1
+platformdirs==4.6.0
 pluggy==1.6.0
 pre_commit==4.5.1
 Pygments==2.19.2