Increase action timeout buffer from 5 to 100 seconds for debugging

This change increases the HTTP client timeout buffer from 5 to 100 seconds
when executing actions. The HTTP client waits for action.timeout + buffer
seconds before timing out, to allow the action execution server to timeout
first and return a proper error message.

With the increased buffer, we can better observe and debug timeout behavior
on the server side without the client timing out prematurely.

Co-authored-by: openhands <openhands@all-hands.dev>

openhands/runtime/impl/action_execution/action_execution_client.py

@@ -324,8 +324,8 @@ class ActionExecutionClient(Runtime):
                     'POST',
                     f'{self.action_execution_server_url}/execute_action',
                     json=execution_action_body,
-                    # wait a few more seconds to get the timeout error from client side
-                    timeout=action.timeout + 5,
+                    # wait additional seconds to get the timeout error from server side
+                    timeout=action.timeout + 100,
                 )
                 assert response.is_closed
                 output = response.json()