Bump the test-dependencies group with 2 updates

Bumps the test-dependencies group with 2 updates: [parallel_tests](https://github.com/grosser/parallel_tests) and [rake](https://github.com/ruby/rake).


Updates `parallel_tests` from 4.2.2 to 4.3.0
- [Changelog](https://github.com/grosser/parallel_tests/blob/master/CHANGELOG.md)
- [Commits](grosser/parallel_tests@v4.2.2...v4.3.0)

Updates `rake` from 13.0.6 to 13.1.0
- [Release notes](https://github.com/ruby/rake/releases)
- [Changelog](https://github.com/ruby/rake/blob/master/History.rdoc)
- [Commits](ruby/rake@v13.0.6...v13.1.0)

---
updated-dependencies:
- dependency-name: parallel_tests
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: test-dependencies
- dependency-name: rake
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: test-dependencies
...

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

Gemfile.lock

@@ -26,13 +26,13 @@ GEM
     moneta (1.0.0)
     multi_json (1.15.0)
     parallel (1.23.0)
-    parallel_tests (4.2.2)
+    parallel_tests (4.3.0)
       parallel
     platform-api (3.5.0)
       heroics (~> 0.1.1)
       moneta (~> 1.0.0)
       rate_throttle_client (~> 0.1.0)
-    rake (13.0.6)
+    rake (13.1.0)
     rate_throttle_client (0.1.2)
     rrrretry (1.0.0)
     rspec-core (3.12.2)