Fix path for copying run_zonal_tests.sh to VM

Author: chandra-siri

storage/cloudbuild/zb-system-tests-cloudbuild.yaml

@@ -98,7 +98,7 @@ steps:
           sleep 15
         done
         # copy the script to the VM
-        gcloud compute scp main/storage/cloudbuild/run_zonal_tests.sh ${_VM_NAME}:~ --zone=${_ZONE} --internal-ip --ssh-key-file=/workspace/.ssh/google_compute_engine
+        gcloud compute scp storage/cloudbuild/run_zonal_tests.sh ${_VM_NAME}:~ --zone=${_ZONE} --internal-ip --ssh-key-file=/workspace/.ssh/google_compute_engine
 
         # Execute the script on the VM via SSH.
         # Capture the exit code to ensure cleanup happens before the build fails.
@@ -134,4 +134,4 @@ timeout: "3600s" # 60 minutes
 options:
   logging: CLOUD_LOGGING_ONLY
   pool:
-    name: "projects/${PROJECT_ID}/locations/us-central1/workerPools/cloud-build-worker-pool"
+    name: "projects/${PROJECT_ID}/locations/us-central1/workerPools/cloud-build-worker-pool"