build(deps-dev): bump parallel_tests from 4.9.1 to 5.1.0

Bumps [parallel_tests](https://github.com/grosser/parallel_tests) from 4.9.1 to 5.1.0.
- [Changelog](https://github.com/grosser/parallel_tests/blob/master/CHANGELOG.md)
- [Commits](grosser/parallel_tests@v4.9.1...v5.1.0)

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

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

Author: dependabot[bot]

Gemfile.lock

@@ -351,7 +351,7 @@ GEM
     ostruct (0.6.1)
     palm_civet (1.1.0)
     parallel (1.26.3)
-    parallel_tests (4.9.1)
+    parallel_tests (5.1.0)
       parallel
     parser (3.3.7.0)
       ast (~> 2.4.1)