build(deps): bump next from 15.1.5 to 15.1.6

Bumps [next](https://github.com/vercel/next.js) from 15.1.5 to 15.1.6.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.1.5...v15.1.6)

---
updated-dependencies:
- dependency-name: next
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

examples/browser/nextjs/package.json

@@ -20,7 +20,7 @@
         "@solana/wallet-adapter-react-ui": "^0.9.35",
         "@solana/wallet-adapter-unsafe-burner": "^0.1.7",
         "@solana/web3.js": "1.98.0",
-        "next": "15.1.5",
+        "next": "15.1.6",
         "react": "^19",
         "react-dom": "^19"
     },