Bump next from 15.1.0 to 15.2.4 in /apps/mongostory

Bumps [next](https://github.com/vercel/next.js) from 15.1.0 to 15.2.4.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.1.0...v15.2.4)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.2.4
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

apps/mongostory/package-lock.json

@@ -59,7 +59,7 @@
     "mongodb": "latest",
     "mongodb-client-encryption": "latest",
     "nanoid": "latest",
-    "next": "15.1.0",
+    "next": "15.2.4",
     "next-themes": "^0.4.4",
     "react": "^19",
     "react-day-picker": "9.6.1",