chore(deps): update dependency @edx/frontend-platform to v5.5.1

Author: renovate[bot]

package-lock.json

@@ -36,7 +36,7 @@
     "@edx/brand": "npm:@edx/[email protected]",
     "@edx/browserslist-config": "^1.1.1",
     "@edx/frontend-build": "12.9.17",
-    "@edx/frontend-platform": "5.4.0",
+    "@edx/frontend-platform": "5.5.1",
     "@edx/reactifex": "^2.1.1",
     "@testing-library/dom": "9.3.3",
     "@testing-library/jest-dom": "5.17.0",