root/pypi: links for numcodecs-safeguards

root/pypi numcodecs_safeguards-0.1.0b1.tar.gz
root/pypi numcodecs_safeguards-0.1.0b1-py3-none-any.whl
root/pypi numcodecs_safeguards-0.1.0a1.tar.gz
root/pypi numcodecs_safeguards-0.1.0a1-py3-none-any.whl