Bump parallel_tests from 2.30.0 to 2.30.1

Bumps [parallel_tests](https://github.com/grosser/parallel_tests) from 2.30.0 to 2.30.1.
- [Release notes](https://github.com/grosser/parallel_tests/releases)
- [Commits](https://github.com/grosser/parallel_tests/compare/v2.30.0...v2.30.1

)

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