Bump orchestra/testbench from 9.2.0 to 9.3.0 (#78)

Bumps [orchestra/testbench](https://github.com/orchestral/testbench) from 9.2.0 to 9.3.0.
- [Release notes](https://github.com/orchestral/testbench/releases)
- [Changelog](https://github.com/orchestral/testbench/blob/9.x/CHANGELOG-9.x.md)
- [Commits](orchestral/testbench@v9.2.0...v9.3.0)

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

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