Removed extra data from state.

gso/services/provisioning_proxy.py

@@ -41,7 +41,7 @@ def _send_request(parameters: dict, callback_route: str) -> None:
     logger.debug(debug_msg)
 
     parameters.update({"callback": callback_url})
-    url = f"{pp_params.scheme}://{pp_params.api_base}/api/playbook/"
+    url = f"{pp_params.scheme}://{pp_params.api_base}/api/playbook"
 
     request = requests.post(url, json=parameters, timeout=10)
     request.raise_for_status()