The AdvancedChatDraftHumanInputDeliveryTestApi and WorkflowDraftHumanInputDeliveryTestApi are the same. Merge this two api by deleting AdvancedChatDraftHumanInputDeliveryTestApi and allowing
Chatflow to use WorkflowDraftHumanInputDeliveryTestApi.
Update tests accordingly. This project uses uv to manage dependencies.