chore(deps): bump next from 14.1.1 to 14.2.21 in /packages/dapp

Bumps [next](https://github.com/vercel/next.js) from 14.1.1 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@v14.1.1...v14.2.21)

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

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

packages/dapp/package.json

@@ -18,7 +18,7 @@
     "@massalabs/massa-web3": "^5.0.1-dev",
     "@metamask/providers": "^15.0.0",
     "framer-motion": "^11.0.8",
-    "next": "14.1.1",
+    "next": "14.2.21",
     "react": "^18",
     "react-dom": "^18",
     "swr": "^2.2.5"