Bump ai from 3.4.33 to 5.0.52 in /samples/nextjs-claude/ui

Bumps [ai](https://github.com/vercel/ai) from 3.4.33 to 5.0.52.
- [Release notes](https://github.com/vercel/ai/releases)
- [Changelog](https://github.com/vercel/ai/blob/main/CHANGELOG.md)
- [Commits](https://github.com/vercel/ai/compare/[email protected]@5.0.52)

---
updated-dependencies:
- dependency-name: ai
  dependency-version: 5.0.52
  dependency-type: direct:production
...

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

Author: dependabot[bot]