deps: Update google-github-actions/auth action to v2.1.3 (#574)

Author: renovate-bot

.github/workflows/tests.yaml

@@ -68,7 +68,7 @@ jobs:
 
       - id: 'auth'
         name: Authenticate to Google Cloud
-        uses: google-github-actions/auth@55bd3a7c6e2ae7cf1877fd1ccb9d54c0503c457c # v2.1.2
+        uses: google-github-actions/auth@71fee32a0bb7e97b4d33d548e7d957010649d8fa # v2.1.3
         with:
           workload_identity_provider: ${{ secrets.PROVIDER_NAME }}
           service_account: ${{ secrets.SERVICE_ACCOUNT }}
@@ -174,7 +174,7 @@ jobs:
         name: Authenticate to Google Cloud
         # only needed for Flakybot on periodic (schedule) and continuous (push) events
         if: ${{ github.event_name == 'schedule' || github.event_name == 'push' }}
-        uses: google-github-actions/auth@55bd3a7c6e2ae7cf1877fd1ccb9d54c0503c457c # v2.1.2
+        uses: google-github-actions/auth@71fee32a0bb7e97b4d33d548e7d957010649d8fa # v2.1.3
         with:
           workload_identity_provider: ${{ secrets.PROVIDER_NAME }}
           service_account: ${{ secrets.SERVICE_ACCOUNT }}