Bump google-api-core from 1.34.0 to 2.18.0 in /docker/google-vision-api

Bumps [google-api-core](https://github.com/googleapis/python-api-core) from 1.34.0 to 2.18.0.
- [Release notes](https://github.com/googleapis/python-api-core/releases)
- [Changelog](https://github.com/googleapis/python-api-core/blob/main/CHANGELOG.md)
- [Commits](googleapis/python-api-core@v1.34.0...v2.18.0)

---
updated-dependencies:
- dependency-name: google-api-core
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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