Youtube added - further checking required

docker/eveai_workers/Dockerfile

@@ -27,9 +27,12 @@ RUN apt-get update && apt-get install -y \
     build-essential \
     gcc \
     postgresql-client \
+    ffmpeg \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
+# Install Python dependencies.
+
 # Download dependencies as a separate step to take advantage of Docker's caching.
 # Leverage a cache mount to /root/.cache/pip to speed up subsequent builds.
 # Leverage a bind mount to requirements.txt to avoid having to copy them into