Josh Jacobs 9ab36f2593 ci: simplify multi-arch build, add cache & concurrency; fix release token ...

- Add workflow-level concurrency to avoid overlapping releases
- Enable BuildKit cache (GHA) for faster Docker builds
- Simplify to a single multi-arch build (linux/amd64, linux/arm64)
  - Remove digest export/upload and manifest merge steps
  - Push manifest directly from buildx with tag `latest`
- Fix GitHub Release token casing to use `secrets.GITHUB_TOKEN`
- Update Dockerfile to use TARGETARCH for correct package selection
  - Pass VERSION consistently; write version to image

No functional change to runtime behavior expected; improves speed, reliability, and maintainability of the release pipeline.

2025-10-26 15:38:44 +00:00

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docker-build.yml

ci: simplify multi-arch build, add cache & concurrency; fix release token

2025-10-26 15:38:44 +00:00