workflows: 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] <[email protected]>

.github/workflows/call-run-integration-test.yaml

@@ -57,7 +57,7 @@ jobs:
           cli_config_credentials_token: ${{ secrets.terraform_api_token }}
 
       - id: 'auth'
-        uses: 'google-github-actions/auth@v1'
+        uses: 'google-github-actions/auth@v2'
         with:
           credentials_json: ${{ secrets.gcp-service-account-key }}
 
@@ -240,7 +240,7 @@ jobs:
           repository: fluent/fluent-bit-ci
 
       - if: matrix.cloud == 'gke'
-        uses: 'google-github-actions/auth@v1'
+        uses: 'google-github-actions/auth@v2'
         with:
           credentials_json: ${{ secrets.gcp-service-account-key }}