build(deps-dev): bump parallel_tests from 3.11.1 to 3.12.0 (#2947)

Bumps [parallel_tests](https://github.com/grosser/parallel_tests) from 3.11.1 to 3.12.0.
- [Release notes](https://github.com/grosser/parallel_tests/releases)
- [Changelog](https://github.com/grosser/parallel_tests/blob/master/CHANGELOG.md)
- [Commits](grosser/parallel_tests@v3.11.1...v3.12.0)

---
updated-dependencies:
- dependency-name: parallel_tests
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

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

Gemfile.lock

@@ -346,7 +346,7 @@ GEM
     os (1.1.4)
     palm_civet (1.1.0)
     parallel (1.22.1)
-    parallel_tests (3.11.1)
+    parallel_tests (3.12.0)
       parallel
     parser (3.1.2.1)
       ast (~> 2.4.1)