fix: use enum.member

[12rambau]

Fix #80

As suggested by the deprecation warning i wrapped the partial call into an enum.member. My understanding of the documentation is that it avoids bugs with self being implicitely ingected in the partial calls. by doing this I should maintain compatibility with the previous version of python and avoid the error with Python 3.13.

[aazuspan]

Thanks @12rambau! Unfortunately enum.member isn't available before 3.11, so we'll need a backwards compatible solution. Maybe something like the wrapper class mentioned in this answer?

class CallableEnumMember:
    def __init__(self, func):
        self._func = func

    def __call__(self, *args, **kwargs):
        return self._func(*args, **kwargs)

Or you could add some logic for checking the Python version and use partial or member depending - your call.

[aazuspan]

I rebased some fixes from main to get tests passing, but CI is failing to authenticate on a fork. Something I need to figure out. Everything passes locally, so I'll go ahead and merge.

Thanks!