Bump sass from 3.6.0 to 3.7.0
Bump sass from 3.6.0 to 3.7.0

Bumps [sass](https://github.com/sass/ruby-sass) from 3.6.0 to 3.7.0.
- [Release notes](https://github.com/sass/ruby-sass/releases)
- [Commits](https://github.com/sass/ruby-sass/compare/3.6.0...3.7.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
coreyja/glassy-collections,coreyja/glassy-collections,coreyja/glassy-collections