klaus-oci release v0.0.44

What’s Changed

• fix(deps): update module golang.org/x/sync to v0.21.0 by @renovate[bot] in https://github.com/giantswarm/klaus-oci/pull/55

Full Changelog: https://github.com/giantswarm/klaus-oci/compare/v0.0.43...v0.0.44