Update Dockerfile

Dockerfile

@@ -2,7 +2,7 @@ FROM python:3.12
 WORKDIR /code
 RUN chmod 777 /code 
 RUN python -m pip install --upgrade pip && \
-    pip install requests waitress flask[async] gradio_client flask-cors gunicorn gevent bs4 huggingface_hub
+    pip install nest_asyncio requests waitress flask[async] gradio_client flask-cors gunicorn gevent bs4 huggingface_hub
 
 RUN --mount=type=secret,id=token,mode=0444,required=true \ 
     --mount=type=secret,id=url,mode=0444,required=true \