Bump google-cloud-storage in /docker/google-cloud-storage

Bumps [google-cloud-storage](https://github.com/googleapis/python-storage) from 2.18.1 to 2.18.2.
- [Release notes](https://github.com/googleapis/python-storage/releases)
- [Changelog](https://github.com/googleapis/python-storage/blob/main/CHANGELOG.md)
- [Commits](googleapis/python-storage@v2.18.1...v2.18.2)

---
updated-dependencies:
- dependency-name: google-cloud-storage
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>