chore: up eslint deps

Author: posva

playground/functions/package.json

@@ -19,8 +19,8 @@
     "firebase-functions": "^4.4.1"
   },
   "devDependencies": {
-    "@typescript-eslint/eslint-plugin": "^5.61.0",
-    "@typescript-eslint/parser": "^5.61.0",
+    "@typescript-eslint/eslint-plugin": "^6.6.0",
+    "@typescript-eslint/parser": "^6.6.0",
     "eslint": "^8.49.0",
     "eslint-config-google": "^0.14.0",
     "eslint-plugin-import": "^2.28.1",