Add build to the Docker container

[archekb]

Add build to the Docker container

[sentriz]

:+1: :+1:

i've had the same change locally for ages

[archekb]

Yes it's very helpful. You do not need setup environment for building last version on the server.

[tamland]

Wondering if this breaks build version/date embedding? The app is already built by CI and passed on to the docker build stage: https://github.com/tamland/airsonic-refix/blob/67bba86ad74fe4485dff3f201ede8dab403ffefb/.github/workflows/ci.yml#L15-L32

[archekb]

I was add arg VERSION for builder container. Now it should works correctly. And for manual buildings too.