Bump @fortawesome/fontawesome-free from 6.4.0 to 6.4.2 in /l2-frontend

Bumps [@fortawesome/fontawesome-free](https://github.com/FortAwesome/Font-Awesome) from 6.4.0 to 6.4.2.
- [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@6.4.0...6.4.2)

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

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

l2-frontend/package.json

@@ -16,7 +16,7 @@
   "dependencies": {
     "@braid/vue-formulate": "^2.5.3",
     "@braid/vue-formulate-i18n": "^1.16.0",
-    "@fortawesome/fontawesome-free": "^6.2.0",
+    "@fortawesome/fontawesome-free": "^6.4.2",
     "@openfonts/open-sans_all": "^1.44.2",
     "@popperjs/core": "^2.11.6",
     "@riophae/vue-treeselect": "^0.4.0",

l2-frontend/yarn.lock

@@ -1006,10 +1006,10 @@
   resolved "https://registry.yarnpkg.com/@eslint/js/-/js-8.38.0.tgz#73a8a0d8aa8a8e6fe270431c5e72ae91b5337892"
   integrity sha512-IoD2MfUnOV58ghIHCiil01PcohxjbYR/qCxsoC+xNgUwh1EY8jOOrYmu3d3a71+tJJ23uscEV4X2HJWMsPJu4g==
 
-"@fortawesome/fontawesome-free@^6.2.0":
-  version "6.4.0"
-  resolved "https://registry.yarnpkg.com/@fortawesome/fontawesome-free/-/fontawesome-free-6.4.0.tgz#1ee0c174e472c84b23cb46c995154dc383e3b4fe"
-  integrity sha512-0NyytTlPJwB/BF5LtRV8rrABDbe3TdTXqNB3PdZ+UUUZAEIrdOJdmABqKjt4AXwIoJNaRVVZEXxpNrqvE1GAYQ==
+"@fortawesome/fontawesome-free@^6.4.2":
+  version "6.4.2"
+  resolved "https://registry.yarnpkg.com/@fortawesome/fontawesome-free/-/fontawesome-free-6.4.2.tgz#36b6a9cb5ffbecdf89815c94d0c0ffa489ac5ecb"
+  integrity sha512-m5cPn3e2+FDCOgi1mz0RexTUvvQibBebOUlUlW0+YrMjDTPkiJ6VTKukA1GRsvRw+12KyJndNjj0O4AgTxm2Pg==
 
 "@hapi/hoek@^9.0.0":
   version "9.3.0"