Update dependency typescript to v4.3.4

Author: renovate-bot

package-lock.json

@@ -70,7 +70,7 @@
     "reveal.js": "4.1.0",
     "start-server-and-test": "1.12.1",
     "tsify": "4.0.1",
-    "typescript": "4.2.4",
+    "typescript": "4.3.4",
     "vite": "2.0.4"
   },
   "engines": {