chore(deps): bump @ai-sdk/provider-utils and ai in /web

Bumps [@ai-sdk/provider-utils](https://github.com/vercel/ai/tree/HEAD/packages/provider-utils) to 4.0.50 and updates ancestor dependency [ai](https://github.com/vercel/ai/tree/HEAD/packages/ai). These dependencies need to be updated together.


Updates `@ai-sdk/provider-utils` from 4.0.29 to 4.0.50
- [Release notes](https://github.com/vercel/ai/releases)
- [Changelog](https://github.com/vercel/ai/blob/@ai-sdk/provider-utils@4.0.50/packages/provider-utils/CHANGELOG.md)
- [Commits](https://github.com/vercel/ai/commits/@ai-sdk/provider-utils@4.0.50/packages/provider-utils)

Updates `ai` from 6.0.204 to 6.0.277
- [Release notes](https://github.com/vercel/ai/releases)
- [Changelog](https://github.com/vercel/ai/blob/ai@6.0.277/packages/ai/CHANGELOG.md)
- [Commits](https://github.com/vercel/ai/commits/ai@6.0.277/packages/ai)

---
updated-dependencies:
- dependency-name: "@ai-sdk/provider-utils"
  dependency-version: 4.0.50
  dependency-type: indirect
- dependency-name: ai
  dependency-version: 6.0.277
  dependency-type: direct:production
...

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Author: dependabot[bot]