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-version: 5.1.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -358,7 +358,7 @@ GEM
     ostruct (0.6.1)
     pagy (9.3.4)
     parallel (1.26.3)
-    parallel_tests (4.9.1)
+    parallel_tests (5.1.0)
       parallel
     paranoia (3.0.1)
       activerecord (>= 6, < 8.1)