Build and publish a container upon release

[ahpook]

Is your feature request related to a problem?

Currently the only release artifact is a zip file, but the app has a dockerfile and there's a build-docker.yml workflow ... seems like these should get wired together

Describe the solution you'd like

Ideally each build would trigger a container, pushed to ghcr.io , with a tag that matches the version number.

Describe alternatives you've considered

No response

Additional context

No response