Multiple tests fail with "Failed: Wrong reference count, expected 2-1024 and got 1" with Python 3.14(-a7)

[szpak]

As detected by the Fedora team, multiple test fails with Python 3.14(-a7).

Sample failure:

_________________________ TestModification.test_append _________________________

self = <test_acls.TestModification object at 0x7f42405dc550>

    def test_append(self):
        """Test append a new Entry to the ACL"""
        acl = posix1e.ACL()
        e = acl.append()
        e.tag_type = posix1e.ACL_OTHER
        ignore_ioerror(errno.EINVAL, acl.calc_mask)
        str_format = str(e)
>       self.checkRef(str_format)

tests/test_acls.py:589: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <test_acls.TestModification object at 0x7f42405dc550>
obj = 'ACL entry for the others'

    def checkRef(self, obj):
        """Checks if a given obj has a 'sane' refcount"""
        if platform.python_implementation() == "PyPy":
            return
        ref_cnt = sys.getrefcount(obj)
        # FIXME: hardcoded value for the max ref count... but I've
        # seen it overflow on bad reference counting, so it's better
        # to be safe
        if ref_cnt < 2 or ref_cnt > 1024:
>           pytest.fail("Wrong reference count, expected 2-1024 and got %d" %
                        ref_cnt)
E           Failed: Wrong reference count, expected 2-1024 and got 1

tests/test_acls.py:573: Failed

Reproduced with GH actions:
https://github.com/szpak-forks/pylibacl/actions/runs/14450020969/job/40520116539?pr=1#step:7:43

See:
#30