klausctl release v0.5.1-rc.2

Fixed

• Strip credentials from the origin URL copied into clones in #368 by @teemow
• Check out git-LFS files as pointers in workspace clones in #370 by @teemow

Full Changelog: https://github.com/giantswarm/klausctl/compare/v0.5.0...v0.5.1-rc.2