Bump next in the npm_and_yarn group across 1 directory

Bumps the npm_and_yarn group with 1 update in the / directory: [next](https://github.com/vercel/next.js).

Updates `next` from 15.3.5 to 15.4.1
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.3.5...v15.4.1)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.4.1
  dependency-type: direct:production
  dependency-group: npm_and_yarn
...

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

Author: dependabot[bot]

examples/nextjs/package.json

@@ -31,4 +31,4 @@
     "@types/react-dom": "^19.1.7",
     "typescript": "^5.9.2"
   }
-}
+}