chore(deps): update typescript-eslint monorepo to v4.20.0

Author: renovate-bot

package-lock.json

@@ -52,8 +52,8 @@
     "@types/fs-extra": "9.0.9",
     "@types/jest": "26.0.22",
     "@types/node": "14.14.37",
-    "@typescript-eslint/eslint-plugin": "4.19.0",
-    "@typescript-eslint/parser": "4.19.0",
+    "@typescript-eslint/eslint-plugin": "4.20.0",
+    "@typescript-eslint/parser": "4.20.0",
     "cpx": "1.5.0",
     "eslint": "7.23.0",
     "eslint-config-prettier": "8.1.0",