build(deps): bump github.com/BuxOrg/bux from 0.5.7 to 0.5.9

Bumps [github.com/BuxOrg/bux](https://github.com/BuxOrg/bux) from 0.5.7 to 0.5.9.
- [Release notes](https://github.com/BuxOrg/bux/releases)
- [Changelog](https://github.com/BuxOrg/bux/blob/master/.goreleaser.yml)
- [Commits](BuxOrg/bux@v0.5.7...v0.5.9)

---
updated-dependencies:
- dependency-name: github.com/BuxOrg/bux
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>