[npm] Bump @fortawesome/fontawesome-free from 5.15.4 to 6.6.0

Bumps [@fortawesome/fontawesome-free](https://github.com/FortAwesome/Font-Awesome) from 5.15.4 to 6.6.0.
- [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@5.15.4...6.6.0)

---
updated-dependencies:
- dependency-name: "@fortawesome/fontawesome-free"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -12,7 +12,7 @@
     "devDependencies": {
         "@coreui/coreui": "^3.0.0",
         "@coreui/icons": "^3.0.1",
-        "@fortawesome/fontawesome-free": "^5.12.1",
+        "@fortawesome/fontawesome-free": "^6.6.0",
         "@popperjs/core": "^2.5.1",
         "alpinejs": "^3.13.3",
         "axios": "^1.7.7",