chore(deps): update google-github-actions/auth action to v0.8.1 (GoogleCloudPlatform#112)

Author: renovate-bot

.github/workflows/tests.yaml

@@ -63,7 +63,7 @@ jobs:
 
       - id: 'auth'
         name: 'Authenticate to Google Cloud'
-        uses: 'google-github-actions/auth@v0.8.0'
+        uses: 'google-github-actions/auth@v0.8.1'
         with:
           workload_identity_provider: ${{ secrets.PROVIDER_NAME }}
           service_account: ${{ secrets.SERVICE_ACCOUNT }}
@@ -141,7 +141,7 @@ jobs:
 
       - id: 'auth'
         name: 'Authenticate to Google Cloud'
-        uses: 'google-github-actions/auth@v0.8.0'
+        uses: 'google-github-actions/auth@v0.8.1'
         with:
           workload_identity_provider: ${{ secrets.PROVIDER_NAME }}
           service_account: ${{ secrets.SERVICE_ACCOUNT }}