Bump next from 14.2.14 to 14.2.15 in /apps/nextjs

Bumps [next](https://github.com/vercel/next.js) from 14.2.14 to 14.2.15.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.2.14...v14.2.15)

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

Signed-off-by: dependabot[bot] <[email protected]>

apps/nextjs/package.json

@@ -16,7 +16,7 @@
     "@plone/providers": "workspace: *",
     "@plone/registry": "workspace: *",
     "@tanstack/react-query": "^5.59.0",
-    "next": "14.2.14",
+    "next": "14.2.15",
     "react": "^18",
     "react-aria-components": "^1.5.0",
     "react-dom": "^18"