Download given playlist build as .mp4.
GET /data/playlists/{playlist_id}/jobs/{build_job_id}/build/mp4
curl \
-X GET http://localhost:8080/api/data/playlists/{playlist_id}/jobs/{build_job_id}/build/mp4
curl \
-X GET http://localhost:8080/api/data/playlists/{playlist_id}/jobs/{build_job_id}/build/mp4