ci(deps): bump google-github-actions/setup-gcloud from 1 to 2

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

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

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

.github/workflows/release-slackbot-proxy.yml

@@ -41,7 +41,7 @@ jobs:
         credentials_json: '${{ secrets.GCP_SA_KEY_SLACKBOT_PROXY }}'
 
     - name: Setup gcloud
-      uses: google-github-actions/setup-gcloud@v1
+      uses: google-github-actions/setup-gcloud@v2
 
     - name: Configure docker for gcloud
       run: |