Setup gcloud

Author: mrober

.github/workflows/sessions-e2e.yml

@@ -31,9 +31,10 @@ jobs:
         run: |
           echo $SESSIONS_E2E_GOOGLE_SERVICES | base64 -d > google-services.json
 
-      - name: Grant execute permission for gradlew
-        run: chmod +x gradlew
-
+      - uses: google-github-actions/auth@v0
+        with:
+          credentials_json: ${{ secrets.GCP_SERVICE_ACCOUNT }}
+      - uses: google-github-actions/setup-gcloud@v0
       - name: Run sessions end-to-end tests
         run: |
-        ./gradlew firebase-sessions:deviceCheck withErrorProne -PtargetBackend="prod"
+          ./gradlew :firebase-sessions:deviceCheck withErrorProne -PtargetBackend="prod"