fix(deps): update dependency @fortawesome/fontawesome-free to v6

Author: renovate[bot]

Diff for: package.json

@@ -7,7 +7,7 @@
     "@babel/plugin-transform-runtime": "7.19.6",
     "@babel/preset-env": "7.20.2",
     "@babel/runtime": "7.20.6",
-    "@fortawesome/fontawesome-free": "5.15.4",
+    "@fortawesome/fontawesome-free": "6.2.1",
     "autoprefixer": "10.4.13",
     "babel-loader": "9.1.0",
     "css-loader": "6.7.2",