updated next version

Author: michelleyeoh

package-lock.json

@@ -50,7 +50,7 @@
     "moment": "^2.30.1",
     "mongodb": "^6.10.0",
     "mongodb-memory-server": "^9.1.1",
-    "next": "^15.5.4",
+    "next": "15.5.9",
     "next-auth": "^5.0.0-beta.25",
     "nodemailer": "^6.9.13",
     "react": "^19.1.1",