fix(deps): update font awesome to v6.4.0

Author: renovate[bot]

package-lock.json

@@ -52,10 +52,10 @@
   },
   "dependencies": {
     "@edx/frontend-platform": "^4.0.1",
-    "@fortawesome/fontawesome-svg-core": "6.3.0",
-    "@fortawesome/free-brands-svg-icons": "6.3.0",
-    "@fortawesome/free-regular-svg-icons": "6.3.0",
-    "@fortawesome/free-solid-svg-icons": "6.3.0",
+    "@fortawesome/fontawesome-svg-core": "6.4.0",
+    "@fortawesome/free-brands-svg-icons": "6.4.0",
+    "@fortawesome/free-regular-svg-icons": "6.4.0",
+    "@fortawesome/free-solid-svg-icons": "6.4.0",
     "@fortawesome/react-fontawesome": "0.2.0"
   },
   "peerDependencies": {