fix(deps): update dependency next to v15.5.7

Author: renovate[bot]

package.json

@@ -60,7 +60,7 @@
     "input-otp": "1.4.1",
     "jose": "latest",
     "lucide-react": "^0.454.0",
-    "next": "15.2.4",
+    "next": "15.5.7",
     "next-auth": "latest",
     "next-themes": "^0.4.4",
     "nodemailer": "^6.10.1",