Bump yt-dlp from 2026.3.13 to 2026.7.4

Bumps [yt-dlp](https://github.com/yt-dlp/yt-dlp) from 2026.3.13 to 2026.7.4.
- [Release notes](https://github.com/yt-dlp/yt-dlp/releases)
- [Changelog](https://github.com/yt-dlp/yt-dlp/blob/master/Changelog.md)
- [Commits](https://github.com/yt-dlp/yt-dlp/compare/2026.03.13...2026.07.04)

---
updated-dependencies:
- dependency-name: yt-dlp
  dependency-version: 2026.7.4
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -16,4 +16,4 @@ regex==2026.2.28
 requests==2.32.*
 tzdata  # This only needed if run on windows. I haven't set a version either to ensure it's up to date.
 wordcloud==1.9.*
-yt-dlp==2026.3.13
+yt-dlp==2026.7.4