Bump @types/node from 20.17.14 to 22.12.0 in /frontend (#28)

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frontend/package-lock.json

@@ -24,7 +24,7 @@
   "devDependencies": {
     "@eslint/eslintrc": "^3",
     "@next/eslint-plugin-next": "^15.1.6",
-    "@types/node": "^20",
+    "@types/node": "^22",
     "@types/react": "^19",
     "@types/react-dom": "^19",
     "eslint": "^9",