chore(deps-dev): bump platformdirs from 4.3.7 to 4.3.8

Bumps [platformdirs](https://github.com/tox-dev/platformdirs) from 4.3.7 to 4.3.8.
- [Release notes](https://github.com/tox-dev/platformdirs/releases)
- [Changelog](https://github.com/tox-dev/platformdirs/blob/main/CHANGES.rst)
- [Commits](tox-dev/platformdirs@4.3.7...4.3.8)

---
updated-dependencies:
- dependency-name: platformdirs
  dependency-version: 4.3.8
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements-dev.txt

@@ -64,7 +64,7 @@ packaging==25.0 ; python_version >= '3.7'
 
 pathlib2==2.3.7.post1
 
-platformdirs==4.3.7 ; python_version >= '3.7'
+platformdirs==4.3.8 ; python_version >= '3.7'
 
 pluggy==1.5.0 ; python_version >= '3.7'