build(deps-dev): bump @oclif/test from 2.1.0 to 2.5.6

Bumps [@oclif/test](https://github.com/oclif/test) from 2.1.0 to 2.5.6.
- [Release notes](https://github.com/oclif/test/releases)
- [Changelog](https://github.com/oclif/test/blob/main/CHANGELOG.md)
- [Commits](oclif/test@v2.1.0...2.5.6)

---
updated-dependencies:
- dependency-name: "@oclif/test"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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