Update nextpy/ai/agent/userproxy_agent.py

using async way of receiving user input

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: AumJavalgikar

nextpy/ai/agent/userproxy_agent.py

@@ -75,4 +75,5 @@ async def a_receive_user_input(self):
         :return: The user input.
         :rtype: str
         """
-        return input('Provide feedback to chat_manager:')
+        import asyncio
+        return await asyncio.to_thread(input, 'Provide feedback to chat_manager:')