klaus-oci release v0.0.12

What’s Changed

• fix(deps): update module golang.org/x/sync to v0.20.0 by @renovate[bot] in https://github.com/giantswarm/klaus-oci/pull/19

Full Changelog: https://github.com/giantswarm/klaus-oci/compare/v0.0.11...v0.0.12