⬆️ Update google-github-actions/auth action to v3

Author: renovate[bot]

.github/workflows/upload-cloud-images.yaml

@@ -32,7 +32,7 @@ jobs:
       # https://github.com/google-github-actions/auth/blob/main/docs/EXAMPLES.md#service-account-key-json
       - id: "auth"
         name: "Authenticate to GCP"
-        uses: 'google-github-actions/auth@6fc4af4b145ae7821d527454aa9bd537d1f2dc5f' # v2
+        uses: 'google-github-actions/auth@7c6bc770dae815cd3e89ee6cdf493a5fab2cc093' # v3
         with:
           create_credentials_file: true
           workload_identity_provider: 'projects/908384205599/locations/global/workloadIdentityPools/github/providers/kairos'