Bump parallel_tests from 2.29.0 to 2.29.1 (#11169)

Bumps [parallel_tests](https://github.com/grosser/parallel_tests) from 2.29.0 to 2.29.1.
- [Release notes](https://github.com/grosser/parallel_tests/releases)
- [Commits](https://github.com/grosser/parallel_tests/compare/v2.29.0...v2.29.1)

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

Gemfile.lock

@@ -393,7 +393,7 @@ GEM
       av (~> 0.9.0)
       paperclip (>= 2.5.2)
     parallel (1.17.0)
-    parallel_tests (2.29.0)
+    parallel_tests (2.29.1)
       parallel
     parser (2.6.3.0)
       ast (~> 2.4.0)