Update Dockerfile

Dockerfile

@@ -4,6 +4,6 @@ RUN pip install fastapi httpx pydantic uvicorn
 COPY . .
 RUN chmod 777 /code
 RUN groupadd -r user && useradd -r -g user user
-RUN chown -R myuser:myuser /code && chmod -R 777 /code
+RUN chown -R user:user /code && chmod -R 777 /code
 USER user
 CMD python /code/app.py