chore(deps): update dependency typescript to v4

[skip ci]

Author: renovate-bot

package-lock.json

@@ -57,7 +57,7 @@
     "lint-staged": "10.5.4",
     "prettier-standard": "16.4.1",
     "semantic-release": "17.3.8",
-    "typescript": "3.9.7"
+    "typescript": "4.1.5"
   },
   "peerDependencies": {
     "semantic-release": ">=11.0.0 <18.0.0"