chore(deps): bump next from 15.2.3 to 15.2.4 in /apps/site

Bumps [next](https://github.com/vercel/next.js) from 15.2.3 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@v15.2.3...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/site/package.json

@@ -42,7 +42,7 @@
     "github-slugger": "~2.0.0",
     "glob": "~11.0.1",
     "gray-matter": "~4.0.3",
-    "next": "15.2.3",
+    "next": "15.2.4",
     "next-intl": "~4.0.2",
     "next-themes": "~0.4.4",
     "postcss": "~8.5.3",