CHORE: tweak GCR deploy GHA

Author: fileformat

.github/workflows/gcr-deploy.yaml

@@ -26,7 +26,7 @@ jobs:
 
       - name: gcloud auth
         id: 'auth'
-        uses: 'google-github-actions/auth@v0'
+        uses: 'google-github-actions/auth@v4'
         with:
           credentials_json: '${{ secrets.GCP_SA_KEY }}'