Bump test-unit from 3.4.6 to 3.5.0 (#2198)

* Bump test-unit from 3.4.6 to 3.5.0

Bumps [test-unit](https://github.com/test-unit/test-unit) from 3.4.6 to 3.5.0.
- [Release notes](https://github.com/test-unit/test-unit/releases)
- [Commits](https://github.com/test-unit/test-unit/compare/3.4.6...3.5.0)

---
updated-dependencies:
- dependency-name: test-unit
  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>
Co-authored-by: wheatley <wheatand@gmail.com>

Gemfile.lock

@@ -190,7 +190,7 @@ GEM
     sync (0.5.0)
     term-ansicolor (1.7.1)
       tins (~> 1.0)
-    test-unit (3.4.6)
+    test-unit (3.5.0)
       power_assert
     test-unit-context (0.5.1)
       test-unit (>= 2.4.0)