Bump @fortawesome/free-solid-svg-icons from 6.5.1 to 6.7.2

Bumps [@fortawesome/free-solid-svg-icons](https://github.com/FortAwesome/Font-Awesome) from 6.5.1 to 6.7.2.
- [Release notes](https://github.com/FortAwesome/Font-Awesome/releases)
- [Changelog](https://github.com/FortAwesome/Font-Awesome/blob/6.x/CHANGELOG.md)
- [Commits](https://github.com/FortAwesome/Font-Awesome/compare/6.5.1...6.7.2)