chore(deps): bump next from 15.2.2 to 15.2.3 in /examples/nextjs-app

Bumps [next](https://github.com/vercel/next.js) from 15.2.2 to 15.2.3.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.2.2...v15.2.3)

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

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

Author: dependabot[bot]

examples/nextjs-app/package-lock.json

@@ -17,7 +17,7 @@
     "@types/react-dom": "19.0.4",
     "eslint": "9.22.0",
     "eslint-config-next": "15.2.2",
-    "next": "15.2.2",
+    "next": "15.2.3",
     "react": "19.0.0",
     "react-dom": "19.0.0",
     "typescript": "5.8.2"