Fix vulnerability

Author: a4ye

package-lock.json

@@ -30,7 +30,7 @@
     "dotenv": "^16.4.7",
     "framer-motion": "^12.3.1",
     "lucide-react": "^0.475.0",
-    "next": "^15.2.8",
+    "next": "15.2.8",
     "nodemailer": "^6.9.16",
     "postgres": "^3.4.5",
     "react": "18.3.1",