Added ffmpeg to the container

Dockerfile

@@ -24,11 +24,12 @@ VOLUME /project
 # Install required tooling
 RUN apt-get -y update \
     && apt-get -y --no-install-recommends install \
-        procps \
         bzip2 \
         ca-certificates \
         curl \
+        ffmpeg \
         jq \
+        procps \
         tar \
         unzip \
         wget \