patch: Upgrade to Typescript 4.0.3

Author: cdimitroulas

package-lock.json

@@ -35,7 +35,7 @@
     "prettier": "1.18.2",
     "pretty-quick": "^1.11.1",
     "ts-node": "^9.0.0",
-    "typescript": "^4.0.2",
+    "typescript": "^4.0.3",
     "yargs-parser": "^13.1.1"
   },
   "devDependencies": {