chore(deps): bump next from 14.2.15 to 14.2.21 in /docs (#12466)
Bumps [next](https://github.com/vercel/next.js) from 14.2.15 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](https://github.com/vercel/next.js/compare/v14.2.15...v14.2.21)
---
updated-dependencies:
- dependency-name: next
dependency-type: direct:production
...
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