[Docs Site] Bump tsx from 4.19.2 to 4.19.3 (#20385)

Bumps [tsx](https://github.com/privatenumber/tsx) from 4.19.2 to 4.19.3.
- [Release notes](https://github.com/privatenumber/tsx/releases)
- [Changelog](https://github.com/privatenumber/tsx/blob/master/release.config.cjs)
- [Commits](privatenumber/tsx@v4.19.2...v4.19.3)

---
updated-dependencies:
- dependency-name: tsx
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]