Bump grunt-stylelint from 0.15.0 to 0.16.0
Bump grunt-stylelint from 0.15.0 to 0.16.0

Bumps [grunt-stylelint](https://github.com/wikimedia/grunt-stylelint) from 0.15.0 to 0.16.0.
- [Release notes](https://github.com/wikimedia/grunt-stylelint/releases)
- [Changelog](https://github.com/wikimedia/grunt-stylelint/blob/master/History.md)
- [Commits](https://github.com/wikimedia/grunt-stylelint/compare/v0.15.0...v0.16.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
philwareham/hive-framework,philwareham/hive-framework