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

Author: renovate-bot

package.json

@@ -63,8 +63,8 @@
     "@types/jest": "26.0.10",
     "@types/node": "10.17.28",
     "@types/node-fetch": "2.5.7",
-    "@typescript-eslint/eslint-plugin": "3.9.1",
-    "@typescript-eslint/parser": "3.9.1",
+    "@typescript-eslint/eslint-plugin": "4.7.0",
+    "@typescript-eslint/parser": "4.7.0",
     "babel-core": "7.0.0-bridge.0",
     "babel-eslint": "10.1.0",
     "babel-jest": "26.3.0",