Bump platformdirs from 2.3.0 to 2.4.0 in /requirements (#17971)
Bump platformdirs from 2.3.0 to 2.4.0 in /requirements (#17971)

Bumps [platformdirs](https://github.com/platformdirs/platformdirs) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/platformdirs/platformdirs/releases)
- [Changelog](https://github.com/platformdirs/platformdirs/blob/main/CHANGES.rst)
- [Commits](https://github.com/platformdirs/platformdirs/compare/2.3.0...2.4.0)

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

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
mozilla/addons-server,wagnerand/addons-server,wagnerand/addons-server,diox/olympia,diox/olympia,diox/olympia,mozilla/addons-server,diox/olympia,mozilla/olympia,mozilla/olympia,mozilla/olympia,mozilla/addons-server,mozilla/addons-server,wagnerand/addons-server,wagnerand/addons-server,mozilla/olympia