Release v0.5.6

What's Changed

• Bypass warning about detached head by @imjasonh in #906
• Add a python/test pipeline. by @vaikas in #907
• meson/configure: don't download subprojects by default by @imjasonh in #909
• add *_config pattern to split/dev pipeline by @joemiller in #879
• Add --test-package-append that you can specify extra test packages for each test. by @vaikas in #910
• Add python/import test pipeline, as well as e2e tests for python test pipelines. by @vaikas in #911
• Tiny cleanup: Move test pipelines to where others are. Remove unnecessary test packages. by @vaikas in #912
• build(deps): bump github.com/cloudflare/circl from 1.3.6 to 1.3.7 by @dependabot in #918
• Convert some sca code to early return style by @jonjohnsonjr in #921
• Take an fs as an argument to RetrieveWorkspace by @jonjohnsonjr in #926
• Move more mutations into parameters by @jonjohnsonjr in #927
• Drop mutable imgRef from build.Build by @jonjohnsonjr in #928
• Remove some more struct mutating and shadowing by @jonjohnsonjr in #929
• Replace packages in APKINDEX with same version by @jonjohnsonjr in #930
• Use errgroup over github.com/korovkin/limiter by @jonjohnsonjr in #931
• Fix sbom loopvar issue by @jonjohnsonjr in #933
• Make BuildGuest more similar for Build and Test by @jonjohnsonjr in #932
• Allow execable shared objects if name has ".so." by @jonjohnsonjr in #934
• drop pkg/logger and use slog by @imjasonh in #919
• Make "unable to detect git commit" a debug message by @imjasonh in #936
• Allow vendored pkgconfig deps by @jonjohnsonjr in #935
• Audit the permissions of workflows. by @mattmoor in #937
• add e2e test that packages can be installed with apk by @imjasonh in #939
• Fail if unknown variable is used in substitution by @jonjohnsonjr in #942
• sort with key/values by @imjasonh in #943

Full Changelog: v0.5.5...v0.5.6