build(deps-dev): bump parallel_tests from 5.6.0 to 5.7.0

Bumps [parallel_tests](https://github.com/grosser/parallel_tests) from 5.6.0 to 5.7.0.
- [Changelog](https://github.com/grosser/parallel_tests/blob/master/CHANGELOG.md)
- [Commits](grosser/parallel_tests@v5.6.0...v5.7.0)

---
updated-dependencies:
- dependency-name: parallel_tests
  dependency-version: 5.7.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Gemfile.lock

@@ -342,7 +342,7 @@ GEM
     os (1.1.4)
     ostruct (0.6.3)
     parallel (1.28.0)
-    parallel_tests (5.6.0)
+    parallel_tests (5.7.0)
       parallel
     parser (3.3.11.1)
       ast (~> 2.4.1)