chore(deps-dev): Bump tsx from 4.20.3 to 4.20.5 in /backend

Bumps [tsx](https://github.com/privatenumber/tsx) from 4.20.3 to 4.20.5.
- [Release notes](https://github.com/privatenumber/tsx/releases)
- [Changelog](https://github.com/privatenumber/tsx/blob/master/release.config.cjs)
- [Commits](privatenumber/tsx@v4.20.3...v4.20.5)

---
updated-dependencies:
- dependency-name: tsx
  dependency-version: 4.20.5
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]