Bump ai from 4.1.11 to 5.0.52 in /vercel-ai-sdk-image-generator

Bumps [ai](https://github.com/vercel/ai) from 4.1.11 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/ai@4.1.11...ai@5.0.52)

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

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Author: dependabot[bot]