[macOS] Filter out the OSError 63 (file name too long)

OSError: [Errno 63] File name too long: '/private/tmp/5f0a0844/1/drive/test_long_file_name70748/FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF.txt'
(2 additional frame(s) were not displayed)
...
  File "nxdrive/engine/processor.py", line 1234, in _create_remotely
    path, os_path, name = self.local.get_new_file(local_parent_path, name)
  File "nxdrive/client/local_client.py", line 562, in get_new_file
    os_path, name = self._abspath_deduped(parent, name)
  File "nxdrive/client/local_client.py", line 766, in _abspath_deduped
    if old_name == name or not os_path.exists():
  File "pathlib.py", line 1339, in exists
    self.stat()
  File "pathlib.py", line 1161, in stat
    return self._accessor.stat(self)

Unknown error