docker: fan-out builds to different runners and reassemble the images at the end

[blotus]

Avoid building all archs on the same runner, as all the builds fight for very limited CPU ressources.

[github-actions]

@blotus: There are no 'kind' label on this PR. You need a 'kind' label to generate the release automatically.

• /kind feature
• /kind enhancement
• /kind refactoring
• /kind fix
• /kind chore
• /kind dependencies

Details

I am a bot created to help the crowdsecurity developers manage community feedback and contributions. You can check out my manifest file to understand my behavior and what I can do. If you want to use this for your project, you can check out the BirthdayResearch/oss-governance-bot repository.

[github-actions]

@blotus: There are no area labels on this PR. You can add as many areas as you see fit.

• /area agent
• /area local-api
• /area cscli
• /area appsec
• /area security
• /area configuration

Details

I am a bot created to help the crowdsecurity developers manage community feedback and contributions. You can check out my manifest file to understand my behavior and what I can do. If you want to use this for your project, you can check out the BirthdayResearch/oss-governance-bot repository.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 64.60%. Comparing base (d66b45e) to head (694a5fe).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4632      +/-   ##
==========================================
- Coverage   64.62%   64.60%   -0.02%     
==========================================
  Files         521      521              
  Lines       39762    39762              
==========================================
- Hits        25696    25690       -6     
- Misses      11670    11674       +4     
- Partials     2396     2398       +2     

Flag	Coverage Δ
bats	41.22% <ø> (-0.04%)	⬇️
unit-linux	41.76% <ø> (-0.02%)	⬇️
unit-windows	30.29% <ø> (ø)

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