ai: Replace some Python deprecated function.

/home/user/app/jarvis.py:285: DeprecationWarning: The explicit passing of coroutine objects to asyncio.wait() is deprecated since Python 3.8, and scheduled for removal in Python 3.11.
done, pending = await asyncio.wait({task, sess.stop_event.wait()}, return_when=asyncio.FIRST_COMPLETED)

jarvis.py

@@ -282,13 +282,15 @@ async def respond_async(multi, history, model_display, sess, custom_prompt):
     history.append([inp, RESPONSES["RESPONSE_8"]])
     yield history, gr.update(interactive=False, submit_btn=False, stop_btn=True), sess
     task = asyncio.create_task(chat_with_model_async(history, inp, model_display, sess, custom_prompt))
-    done, pending = await asyncio.wait({task, sess.stop_event.wait()}, return_when=asyncio.FIRST_COMPLETED)
-    if sess.stop_event.is_set():
+    stop_task = asyncio.create_task(sess.stop_event.wait())
+    done, pending = await asyncio.wait({task, stop_task}, return_when=asyncio.FIRST_COMPLETED)
+    if stop_task in done:
         task.cancel()
         history[-1][1] = RESPONSES["RESPONSE_1"]
         yield history, gr.update(value="", interactive=True, submit_btn=True, stop_btn=False), sess
         sess.stop_event.clear()
         return
+    stop_task.cancel()
     ai = task.result()
     history[-1][1] = ""
     buffer = []