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

Bumps [@fortawesome/free-solid-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-solid-svg-icons"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -16,7 +16,7 @@
   "devDependencies": {
     "@fortawesome/free-brands-svg-icons": "^6.4.2",
     "@fortawesome/free-regular-svg-icons": "^6.5.1",
-    "@fortawesome/free-solid-svg-icons": "^6.5.1",
+    "@fortawesome/free-solid-svg-icons": "^6.7.1",
     "@fullhuman/postcss-purgecss": "^6.0.0",
     "@microsoft/fetch-event-source": "^2.0.1",
     "@rollup/plugin-dsv": "^3.0.4",