musl docker #618

[joepio]

Looks like compiling this on mac does not work, but if the buildx works in the CI, i'm keeping it.

PR Checklist:

• Link to related issues: closes Dockerfile broken exec /atomic-server-bin: no such file or directory #618
• Add changelog entry linking to issue, describe API changes
• Add tests (optional)
• (If new feature) add to description / readme

Thanks to @AlexMikhalev !

[codecov-commenter]

Codecov Report

Merging #619 (216f175) into develop (25f8276) will not change coverage.
The diff coverage is n/a.

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@@           Coverage Diff            @@
##           develop     #619   +/-   ##
========================================
  Coverage    65.42%   65.42%           
========================================
  Files           72       72           
  Lines         8026     8026           
========================================
  Hits          5251     5251           
  Misses        2775     2775           

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[joepio]

We already use MUSL with earthly