Changes

• Consolidate Dockerfiles, package/Dockerfile is now just a package target in the main Dockerfile
• New multi-arch-build and multi-arch-package make targets, uses Golang cross-compile to build multi-arch images
• Removed CROSS compile from older build script, new script handles any OS and any ARCH combo
• New GHA Release CI, single host workflow using buildx multiarch. Performance is not as good as native builds (under 1m), but at only ~2.5min for CI to pass, simplified CI workflow is worth the performance hit.
• Removed Drone Release CI, now only used on PRs for testing
• Publish to both DockerHub and GHCR

Validation

New CI used to publish on my personal fork:

• Release: https://github.com/dereknola/kine/releases/tag/v0.13.11-rc1
• CI Run: https://github.com/dereknola/kine/actions/runs/13844586065
• GHCR Package: https://github.com/dereknola/kine/pkgs/container/kine
• DockerHub Package: https://hub.docker.com/repository/docker/dereknola/kine/tags/v0.13.11-rc1/sha256:345c9c266aa0f84939f450945a0e5d6a01dc3771a7d1bb785b275ea4a789cf92