Update dependency typescript to v4

Author: renovate-bot

package.json

@@ -35,7 +35,7 @@
     "jasmine": "3.6.1",
     "jasmine-node": "3.0.0",
     "ts-node": "8.10.2",
-    "typescript": "3.9.7"
+    "typescript": "4.0.5"
   },
   "dependencies": {
     "@angular-devkit/architect": "0.1000.5",