chore(deps-dev): bump next in /packages/internal/dex/sdk-sample-app

Bumps [next](https://github.com/vercel/next.js) from 14.2.25 to 16.1.5.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.2.25...v16.1.5)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 16.1.5
  dependency-type: direct:development
...

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

Author: dependabot[bot]

packages/internal/dex/sdk-sample-app/package.json

@@ -10,7 +10,7 @@
     "concurrently": "^8.2.2",
     "eslint": "^8.56.0",
     "ethers": "^6.13.4",
-    "next": "^15.1.6",
+    "next": "^15.5.10",
     "postcss": "8.4.31",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",