Fix dockerfile dependencies

Dockerfile

@@ -4,6 +4,7 @@ ARG APP_HOME=/app
 ENV PYTHONUNBUFFERED 1
 ENV PYTHONDONTWRITEBYTECODE 1
 WORKDIR ${APP_HOME}
+RUN apt-get update && apt-get install -y ffmpeg libsm6 libxext6 libmagic-dev
 COPY ./requirements.txt ${APP_HOME}/requirements.txt
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
 COPY . ${APP_HOME}