chore(deps-dev): bump orchestra/testbench from 6.27.1 to 6.28.0 (#352)

Bumps [orchestra/testbench](https://github.com/orchestral/testbench) from 6.27.1 to 6.28.0.
- [Release notes](https://github.com/orchestral/testbench/releases)
- [Changelog](https://github.com/orchestral/testbench/blob/v6.28.0/CHANGELOG-6.x.md)
- [Commits](orchestral/testbench@v6.27.1...v6.28.0)

---
updated-dependencies:
- dependency-name: orchestra/testbench
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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