Update dependency typescript to v4.0.3

Author: renovate-bot

package-lock.json

@@ -47,7 +47,7 @@
     "ts-jest": "26.3.0",
     "ts-node": "9.0.0",
     "ts-node-dev": "1.0.0-pre.62",
-    "typescript": "4.0.2"
+    "typescript": "4.0.3"
   },
   "jest": {
     "collectCoverageFrom": [