Deps: Bump platformdirs from 3.5.1 to 3.5.3

Bumps [platformdirs](https://github.com/platformdirs/platformdirs) from 3.5.1 to 3.5.3.
- [Release notes](https://github.com/platformdirs/platformdirs/releases)
- [Changelog](https://github.com/platformdirs/platformdirs/blob/main/CHANGES.rst)
- [Commits](tox-dev/platformdirs@3.5.1...3.5.3)

---
updated-dependencies:
- dependency-name: platformdirs
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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