allways use gcp-runner- as instance name prefix

Author: Cyclenerd

app/clients/gcloud_client.py

@@ -76,9 +76,10 @@ def create_runner_instance(self, registration_token, repo_url, template_name, in
                            "Skipping instance creation.")
             return None
 
+        # Name must start with a lowercase letter followed by up to 62 lowercase letters, numbers, or hyphens, and cannot end with a hyphen
         instance_uuid = uuid.uuid4().hex[:16]
         if instance_template_resource.name.startswith("dependabot"):
-            instance_name = f"dependabot-{instance_uuid}"
+            instance_name = f"gcp-runner-dependabot-{instance_uuid}"
         else:
             instance_name = f"gcp-runner-{instance_uuid}"