I'm submitting a ...

• feature request

What is the current behavior?

Features values set as is.

What is the expected behavior?

Cast features to string

What is the motivation / use case for changing the behavior?

For easily cast to feature name from dataclasses

Its look better

@allure.feature(Features.some_feature1, Features.some_feature2)

vs

@allure.feature(str(Features.some_feature1), str(Features.some_feature2))

Please tell us about your environment:

• Allure version: 2.1.0
• Test framework: pytest@6.2.4
• Allure adaptor: allure-pytest@2.9.43

Other information