fix(deps): update font awesome to v6

Author: renovate[bot]

package-lock.json

@@ -42,9 +42,9 @@
     "@edx/frontend-platform": "^8.3.1",
     "@edx/openedx-atlas": "^0.7.0",
     "@edx/react-unit-test-utils": "^4.0.0",
-    "@fortawesome/free-brands-svg-icons": "5.15.4",
-    "@fortawesome/free-regular-svg-icons": "5.15.4",
-    "@fortawesome/free-solid-svg-icons": "5.15.4",
+    "@fortawesome/free-brands-svg-icons": "6.7.2",
+    "@fortawesome/free-regular-svg-icons": "6.7.2",
+    "@fortawesome/free-solid-svg-icons": "6.7.2",
     "@fortawesome/react-fontawesome": "^0.1.4",
     "@openedx/frontend-build": "^14.5.0",
     "@openedx/frontend-plugin-framework": "^1.7.0",