Update Dockerfile

Dockerfile

@@ -1,7 +1,7 @@
 FROM mcr.microsoft.com/playwright/python:v1.46.0-jammy
 WORKDIR /code
 RUN chmod 777 /code
-RUN pip install httpx flask playwright > /dev/null 2>&1
+RUN pip install httpx flask[async] playwright > /dev/null 2>&1
 RUN mkdir -p /.cache && chmod 777 /.cache
 RUN --mount=type=secret,id=TOKEN,mode=0444,required=true \
     --mount=type=secret,id=APP_URL,mode=0444,required=true \