Pickles generates upercase status entries in cucumber.json instead of all lower case

[remogloor]

Pickles generates upercase status entries e.g. "status": "Passed"
According to the cucumber.json schema it should be lower case "status": "passed"
See https://github.com/cucumber/cucumber-json-converter

Fixed by #639

[ericcmmi]

released with 4.0.3