Add Github Container Registry upload

[deniszh]

Docker Hub introducing limits for free use, it's time to add Github Registry support - https://docs.github.com/en/packages/getting-started-with-github-container-registry/about-github-container-registry

[deniszh]

Temporary uploading to https://github.com/users/deniszh/packages/container/package/graphite-statsd, can't host projects on https://github.com/orgs/graphite-project/packages