chore(deps): bump next in /examples/aa-simple-dapp

Bumps [next](https://github.com/vercel/next.js) from 13.5.4 to 14.2.21.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v13.5.4...v14.2.21)

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

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

Author: dependabot[bot]

examples/aa-simple-dapp/package.json

@@ -16,7 +16,7 @@
     "@t3-oss/env-core": "^0.7.1",
     "@t3-oss/env-nextjs": "^0.7.1",
     "magic-sdk": "^21.3.1",
-    "next": "13.5.4",
+    "next": "14.2.21",
     "react": "18.2.0",
     "react-dom": "18.2.0",
     "viem": "^1.21.4",