chore(deps-dev): bump platformdirs from 3.3.0 to 3.4.0

Bumps [platformdirs](https://github.com/platformdirs/platformdirs) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/platformdirs/platformdirs/releases)
- [Changelog](https://github.com/platformdirs/platformdirs/blob/main/CHANGES.rst)
- [Commits](tox-dev/platformdirs@3.3.0...3.4.0)

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

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

Author: dependabot[bot]

requirements-dev.txt

@@ -15,7 +15,7 @@ mccabe==0.7.0
 mypy-extensions==1.0.0
 packaging==23.1
 pathspec==0.11.1
-platformdirs==3.3.0
+platformdirs==3.4.0
 pluggy==1.0.0
 py==1.11.0
 pycodestyle==2.10.0