chore(deps): update npm to >=11.12.0

Author: renovate[bot]

frontend/package-lock.json

@@ -2,7 +2,7 @@
   "name": "tripr-app-frontend",
   "version": "0.0.0",
   "engines": {
-    "npm": ">=11.0.0",
+    "npm": ">=11.12.0",
     "node": ">=24.0.0"
   },
   "scripts": {