Update dependency typescript to v4.2.4

Author: renovate-bot

package-lock.json

@@ -7,7 +7,7 @@
     "mocha": "8.3.2",
     "protractor": "7.0.0",
     "ts-node": "9.1.1",
-    "typescript": "4.2.3"
+    "typescript": "4.2.4"
   },
   "description": "Protractor end-to-end test automation boilerplate. Using TypeScript, ts-node, Mocha and Assert.",
   "devDependencies": {