Bump haml from 5.1.0 to 5.1.1
Bump haml from 5.1.0 to 5.1.1

Bumps [haml](https://github.com/haml/haml) from 5.1.0 to 5.1.1.
- [Release notes](https://github.com/haml/haml/releases)
- [Changelog](https://github.com/haml/haml/blob/master/CHANGELOG.md)
- [Commits](https://github.com/haml/haml/compare/v5.1.0...v5.1.1)
Tomohiro/fluentular