flake8-return attribute deprecated

Hi,

I'm trying to pass py3-flake8_extended job, but I get following error:

  File "/usr/local/lib/python3.14/site-packages/flake8_return/utils.py", line 6, in is_none
    return isinstance(node, ast.NameConstant) and node.value is None

It seems NameConstant attribute is not longer available in python 3.14

I'm not sure how to proceed...