Update Dockerfile

add jellyfin-ffmpeg

Dockerfile

@@ -47,6 +47,9 @@ RUN go build -o seanime -trimpath -ldflags="-s -w"
 # Complete the APP
 FROM alpine:latest
 
+# Add FFMPEG to the final image
+RUN apk add --no-cache jellyfin-ffmpeg
+
 # Set root
 WORKDIR /app