Bump yard from 0.8.2.1 to 0.9.20
Bump yard from 0.8.2.1 to 0.9.20

Bumps [yard](https://github.com/lsegal/yard) from 0.8.2.1 to 0.9.20.
- [Release notes](https://github.com/lsegal/yard/releases)
- [Changelog](https://github.com/lsegal/yard/blob/master/CHANGELOG.md)
- [Commits](https://github.com/lsegal/yard/compare/v0.8.2.1...v0.9.20)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
cookbooks/hw-chef-dnsimple