Update Dockerfile

Dockerfile

@@ -11,7 +11,7 @@ WORKDIR /app
 
 COPY --chown=mirix ./requirements.txt requirements.txt
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
-RUN pip install uvicorn
+RUN pip install gunicorn
 
 COPY --chown=mirix . /app
-CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]
+CMD ["gunicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]