Using url from config file

main.py

@@ -21,7 +21,7 @@ if __name__ == '__main__':
         "X-API-Key": config.access_token
     }
 
-    api_url = "https://portainer.dorfsvald.net/api/stacks"
+    api_url = f"{config.portainer_url}/api/stacks"
     response = requests.get(api_url, headers=headers)
     stack_list = response.json()