bashunit update to version 0.20.0

[feskol]

Update bashunit to version 0.20.0.

Release Notes:

## 🔖 What's Changed

https://bashunit.typeddevs.com/blog/2025-06-01-release-0-20

🥇 New Features

• Added assert_not_called to ensure a test double has not been invoked #410
• Introduced assert_match_snapshot_ignore_colors to support color-insensitive snapshot comparisons #404
• Enabled parallel test execution on Windows for improved cross-platform performance #409
• Enhanced assert_have_been_called_with to verify specific call arguments #408
• Enabled dynamic argument interpolation in data provider outputs #402

🐛 Bug Fixes

• Fixed assertion issues with test doubles when used in subshells #400
• Resolved temporary file conflicts in parallel spy usage #405
• Corrected behavior of test doubles under parallel execution #406

🌾 Miscellaneous

• Deprecated the # data_provider annotation in favor of # @data_provider for clarity and consistency #407
• Improved performance of find_total_tests for faster test discovery #412
• Optimized runner::parse_result_sync to reduce execution overhead #413

⛵ Contributors

• @Chemaclass

Full Changelog: TypedDevs/bashunit@0.19.1...0.20.0

checksum: d1eed647b705ff91a3ce233b06cf300fcaf540a411404e2287d50c66699773a8