publish image snapshots to ghcr.io

[flavorjones]

See #71 for context.

This is a draft to try to publish snapshots of the docker images to ghcr.io for integration testing on other projects.

[flavorjones]

woot!

• action https://github.com/rake-compiler/rake-compiler-dock/actions/runs/3721653404/jobs/6311949466
• published https://github.com/rake-compiler/rake-compiler-dock/pkgs/container/rake-compiler-dock-snapshot

[flavorjones]

Note: I don't think the image naming here is completely right, it's different from lars's dockerhub names and also doesn't take into consideration the work @ianks is doing at #79 to build arm64 host images.

[ianks]

Note: I don't think the image naming here is completely right, it's different from lars's dockerhub names and also doesn't take into consideration the work @ianks is doing at #79 to build arm64 host images.

As far as #79 is concerned, it shouldn't affect the naming at all (since the image is automatically selected by Docker via the --platform flag).

[flavorjones]

the image is automatically selected by Docker via the --platform flag

Ah! OK, I get it.