update schema

apps/pipelines/tests/data/CodeNode.json

@@ -7,7 +7,7 @@
       "ui:widget": "node_name"
     },
     "code": {
-      "default": "# You must define a main function, which takes the node input as a string.\n# Return a string to pass to the next node.\n\n# Available functions:\n# - get_participant_data() -> dict\n# - set_participant_data(data: Any) -> None\n# - get_temp_state_key(key_name: str) -> str | None\n# - set_temp_state_key(key_name: str, data: Any) -> None\n\ndef main(input: str, **kwargs) -> str:\n    return input\n",
+      "default": "# You must define a main function, which takes the node input as a string.\n# Return a string to pass to the next node.\n\n# Learn more about Python nodes at https://dimagi.github.io/open-chat-studio-docs/concepts/pipelines/nodes/#python-node\n\ndef main(input: str, **kwargs) -> str:\n    return input\n",
       "description": "The code to run",
       "title": "Code",
       "type": "string",