replace dockerhub with github docker registry

[nilsnolde]

closes #4029

Let's try with Github Actions, so much easier. On CircleCI it was running with a default machine as well, not the big ones. So probably similar performance. As temp I enabled to build this branch.

Also removes the run- prefix as that's not applicable anymore and since people will have to update the URL they're pulling from anyways, we can break this as well IMO.

[nilsnolde]

BTW, I built the image in https://github.com/valhalla/valhalla/actions/runs/4473531846/jobs/7861023336, but I canceled the build or it'd have pushed this branch's image as latest (would've been fine actually, but still). Tagged ones will also work, I use that in other repos.

[michaelkirk]

The docker command line is already so minimal that it indeed seems like a good idea to forego the "fancy" docker GH action.

Everything else (also) looks reasonable to me.

[nilsnolde]

Jep that worked, 2 brand new images :)

https://github.com/valhalla/valhalla/pkgs/container/valhalla

Let me revert the test stuff before we merge.

[nilsnolde]

this is also done @kevinkreiser . The 2 PRs should merge cleanly without conflict

BTW, the docker builds take the same time as it took on CircleCI, around 30 mins.

[nilsnolde]

I’ll also remove the test tag and image