Fix step duration calculation

[iaroslav-ciupin]

🤔 What's changed?

⚡️ What's your motivation?

🏷️ What kind of change is this?

• 📖 Documentation (improvements without changing code)
• 🏦 Refactoring/debt/DX (improvement to code design, tooling, etc. without changing behaviour)
• 🐛 Bug fix (non-breaking change which fixes a defect)
• ⚡ New feature (non-breaking change which adds new behaviour)
• 💥 Breaking change (incompatible changes to the API)

♻️ Anything particular you want feedback on?

📋 Checklist:

• I agree to respect and uphold the Cucumber Community Code of Conduct
• I've changed the behaviour of the code
  • I have added/updated tests to cover my changes.
• My change requires a change to the documentation.
  • I have updated the documentation accordingly.
• Users should know about my change
  • I have added an entry to the "Unreleased" section of the CHANGELOG, linking to this pull request.

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[vearutop]

Thank you for fixing this. 👍

[aslakhellesoy]

Hi @iaroslav-ciupin,

Thanks for your making your first contribution to Cucumber, and welcome to the Cucumber committers team! You can now push directly to this repo and all other repos under the cucumber organization! 🍾

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On behalf of the Cucumber core team,
Aslak Hellesøy
Creator of Cucumber

[iaroslav-ciupin]

@vearutop @aslakhellesoy thank you, #615 in this issue I also asked whether we should return duration in nanoseconds or milliseconds? because cucumber-html-reporter expects milliseconds, but this library currently generates nanoseconds which leads to wrong duration in HTML report