chore(deps-dev): bump yt-dlp in the uv group across 1 directory

Bumps the uv group with 1 update in the / directory: [yt-dlp](https://github.com/yt-dlp/yt-dlp).


Updates `yt-dlp` from 2025.12.8 to 2026.2.21
- [Release notes](https://github.com/yt-dlp/yt-dlp/releases)
- [Changelog](https://github.com/yt-dlp/yt-dlp/blob/master/Changelog.md)
- [Commits](yt-dlp/yt-dlp@2025.12.08...2026.02.21)

---
updated-dependencies:
- dependency-name: yt-dlp
  dependency-version: 2026.2.21
  dependency-type: direct:development
  dependency-group: uv
...

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Author: dependabot[bot]