Update from 0.4.7 to 0.5.3

[lorerave85]

I'm trying to upgrade my supervised MultiAgent from langgraph==0.4.7 to langgraph==0.5.3.
I expose it using langserve on a local server.
I use the langgraph.prebuilt library for react agents:
langgraph-supervisor==0.0.27
langgraph-prebuilt==0.5.2

After the upgrade, I get a "POST /main/invoke HTTP/1.1" 422 Unprocessable Content error.

Currently, when I call the API, I pass static parameters that must then be used throughout the entire workflow.