root/pypi: links for cfflatten

root/pypi cfflatten-22.2.11.tar.gz
root/pypi cfflatten-22.2.11-py3-none-any.whl
root/pypi cfflatten-22.2.11a0.tar.gz
root/pypi cfflatten-22.2.11a0-py3-none-any.whl