chore(deps): update typescript-eslint monorepo to v4.15.0

Author: renovate-bot

package-lock.json

@@ -33,8 +33,8 @@
     "@types/node": "12.12.31",
     "@types/node-fetch": "2.5.8",
     "@types/normalize-path": "3.0.0",
-    "@typescript-eslint/eslint-plugin": "4.14.2",
-    "@typescript-eslint/parser": "4.14.2",
+    "@typescript-eslint/eslint-plugin": "4.15.0",
+    "@typescript-eslint/parser": "4.15.0",
     "apollo-server-express": "2.16.1",
     "apollo-server-fastify": "2.16.1",
     "apollo-server-testing": "2.16.1",