Bump importlib-metadata from 8.4.0 to 8.5.0 in /docker/pyotrs (#32245)

Bumps [importlib-metadata](https://github.com/python/importlib_metadata) from 8.4.0 to 8.5.0.
- [Release notes](https://github.com/python/importlib_metadata/releases)
- [Changelog](https://github.com/python/importlib_metadata/blob/main/NEWS.rst)
- [Commits](python/importlib_metadata@v8.4.0...v8.5.0)

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

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