Update Dockerfile

Dockerfile

@@ -10,6 +10,13 @@ WORKDIR /code
 COPY --chown=user ./requirements.txt /code/requirements.txt
 
 ENV PATH="/home/user/.local/bin:${PATH}"
+USER root
+
+# Install ffmpeg
+RUN apt-get update && apt-get install -y ffmpeg
+
+# Switch back to the "user" user
+USER user
 RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 COPY --chown=user . .