auth fix (#29128)
diff --git a/.github/workflows/beam_PerformanceTests_xlang_KafkaIO_Python.yml b/.github/workflows/beam_PerformanceTests_xlang_KafkaIO_Python.yml
index 9278767..2818b71 100644
--- a/.github/workflows/beam_PerformanceTests_xlang_KafkaIO_Python.yml
+++ b/.github/workflows/beam_PerformanceTests_xlang_KafkaIO_Python.yml
@@ -73,6 +73,12 @@
         uses: ./.github/actions/setup-environment-action
         with:
           python-version: 3.8
+      - name: Authenticate on GCP
+        id: auth
+        uses: google-github-actions/auth@v1
+        with:
+          credentials_json: ${{ secrets.GCP_SA_KEY }}
+          project_id: ${{ secrets.GCP_PROJECT_ID }}
       - name: Set k8s access
         uses: ./.github/actions/setup-k8s-access
         with: