chore(deps): update typescript-eslint monorepo to v4

Author: renovate-bot

package-lock.json

@@ -60,8 +60,8 @@
     "@types/nodemon": "1.19.0",
     "@types/pino": "6.3.5",
     "@types/prettier": "2.1.6",
-    "@typescript-eslint/eslint-plugin": "3.10.1",
-    "@typescript-eslint/parser": "3.10.1",
+    "@typescript-eslint/eslint-plugin": "4.21.0",
+    "@typescript-eslint/parser": "4.21.0",
     "cross-env": "7.0.3",
     "eslint": "7.18.0",
     "eslint-config-airbnb": "18.2.1",