Move moments/test_moments_rolling_apply.py to window/test_apply.py

[mroeschke]

• tests added / passed
• Ensure all linting tests pass, see here for how to run them

Since some tests are not running on windows/moments (#37535), moving some lighter apply tests to test_apply.py

[alimcmaster1]

Flakey test - restarting CI. https://github.com/pandas-dev/pandas/runs/3981972547?check_suite_focus=true

def assert_equal_zip_safe(result: bytes, expected: bytes):
        """
        We would like to assert these are equal, but the 10th and 11th bytes are a
        last-modified timestamp, which in some builds is off-by-one, so we check around
        that.
    
        See https://en.wikipedia.org/wiki/ZIP_(file_format)#File_headers
        """
        assert result[:9] == expected[:9]
>       assert result[11:] == expected[11:]
E       AssertionError: assert b'\x11WS\x83\...0\x00\x00\x00' == b'\x11WS\x83\...0\x00\x00\x00'
E         At index 1589 diff: b'\xd7' != b'\xd6'
E         Use -v to get the full diff

[alimcmaster1]

Think I'm missing something - where is this actually called?

[mroeschke]

Here for example: https://github.com/pandas-dev/pandas/pull/44140/files#diff-61396f0937cb414f49924a8b16ce4030e463f4a3f76a9b50bf38b6fc79ed47fdR187

This file has quite a few ...apply(f, ...) calls.

[alimcmaster1]

LGTM