build(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] <[email protected]>

.github/workflows/validate-pipelines.yml

@@ -41,7 +41,7 @@ jobs:
         steps:
             - uses: actions/checkout@v3
             - id: 'auth'
-              uses: google-github-actions/auth@v1
+              uses: google-github-actions/auth@v2
               with:
                 workload_identity_provider: 'projects/868781662168/locations/global/workloadIdentityPools/prod-github/providers/github-oidc-pool'
                 service_account: '[email protected]'