Login to Google Cloud and generate oauth token

.github/workflows/ci-docker-publish.yml

@@ -31,13 +31,21 @@ jobs:
           install: true
           buildkitd-flags: --debug
 
+      # Login to Google Cloud
+      - name: 'Login to Google Cloud'
+        uses: 'google-github-actions/auth@v0'
+        id: auth
+        with:
+          token_format: 'access_token'
+          credentials_json: '${{ secrets.GCR_SA_KEY }}'
+
       # Login to GCR
       - name: Login to GCR
         uses: docker/login-action@v2
         with:
           registry: us-docker.pkg.dev
-          username: _json_key
-          password: ${{ secrets.GCR_SA_KEY }}
+          username: oauth2accesstoken
+          password: ${{ steps.auth.outputs.access_token }}
 
       # Build and push the image, leveraging layer caching
       - name: Build and Push