Log Message:
py-wheel: updated to 0.33.6

0.33.6:
- Fixed regression from 0.33.5 that broke building binary wheels against the
  limited ABI
- Fixed egg2wheel compatibility with the future release of Python 3.10

0.33.5:
- Don't add the m ABI flag to wheel names on Python 3.8
- Updated MANIFEST.in to include many previously omitted files in the sdist