v0.21.3

What's Changed

• Bump github.com/go-git/go-git/v5 from 5.12.0 to 5.13.1 in the go_modules group by @dependabot in #439
• Bump apko to v0.22.6 by @jonjohnsonjr in #440

Full Changelog: v0.21.2...v0.21.3