Bump @fortawesome/free-brands-svg-icons from 6.6.0 to 6.7.1

Bumps [@fortawesome/free-brands-svg-icons](https://github.com/FortAwesome/Font-Awesome) from 6.6.0 to 6.7.1.
- [Release notes](https://github.com/FortAwesome/Font-Awesome/releases)
- [Changelog](https://github.com/FortAwesome/Font-Awesome/blob/6.x/CHANGELOG.md)
- [Commits](FortAwesome/Font-Awesome@6.6.0...6.7.1)

---
updated-dependencies:
- dependency-name: "@fortawesome/free-brands-svg-icons"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>