build(deps): bump sphinxcontrib-video from 0.4.1 to 0.4.2 in /requirements (#21497)

* build(deps): bump sphinxcontrib-video in /requirements

Bumps [sphinxcontrib-video](https://github.com/sphinx-contrib/video) from 0.4.1 to 0.4.2.
- [Release notes](https://github.com/sphinx-contrib/video/releases)
- [Commits](https://github.com/sphinx-contrib/video/compare/v0.4.1...v0.4.2)

---
updated-dependencies:
- dependency-name: sphinxcontrib-video
  dependency-version: 0.4.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>