chore(deps): bump google-github-actions/auth from 1 to 2

Bumps [google-github-actions/auth](https://github.com/google-github-actions/auth) from 1 to 2.
- [Release notes](https://github.com/google-github-actions/auth/releases)
- [Changelog](https://github.com/google-github-actions/auth/blob/main/CHANGELOG.md)
- [Commits](google-github-actions/auth@v1...v2)

---
updated-dependencies:
- dependency-name: google-github-actions/auth
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/release.yml

@@ -69,7 +69,7 @@ jobs:
       - name: Login to Google Cloud
         # Only run this on repositories in the 'spinnaker' org, not on forks.
         if: startsWith(github.repository, 'spinnaker/')
-        uses: 'google-github-actions/auth@v1'
+        uses: 'google-github-actions/auth@v2'
         # use service account flow defined at: https://github.com/google-github-actions/upload-cloud-storage#authenticating-via-service-account-key-json
         with:
           credentials_json: '${{ secrets.GAR_JSON_KEY }}'