Maybe `utf-8` is the best choise for solve decode error.

[edsion]

From: #5 #39

My environment is
'Python': '3.9.13',
'Platform': 'Windows-10-10.0.19044-SP0'
Call locale.getpreferredencoding() will return cp936,but decode error still occured.

PS: Another option is to support pytest.toml or pytest.yaml ?