Bump google-github-actions/auth from 2.1.7 to 2.1.8 (#5218)

Bumps [google-github-actions/auth](https://github.com/google-github-actions/auth) from 2.1.7 to 2.1.8.
- [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@v2.1.7...v2.1.8)

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

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

.github/workflows/build-apps.yml

@@ -390,7 +390,7 @@ jobs:
 
       - name: Authenticate to Google Cloud
         if: ${{ env.IS_NIGHTLY == 'true' }}
-        uses: 'google-github-actions/[email protected].7'
+        uses: 'google-github-actions/[email protected].8'
         with:
           credentials_json: '${{ secrets.GOOGLE_CLOUD_DL_SA }}'
 

.github/workflows/publish-apps-release.yml

@@ -108,7 +108,7 @@ jobs:
         run: yarn files:set-notes
 
       - name: Authenticate to Google Cloud
-        uses: 'google-github-actions/[email protected].7'
+        uses: 'google-github-actions/[email protected].8'
         with:
           credentials_json: '${{ secrets.GOOGLE_CLOUD_DL_SA }}'