loongson/pypi: links for rigidpy

loongson/mirror rigidpy-0.0.8.tar.gz
loongson/mirror rigidpy-0.0.8-py3-none-any.whl
loongson/mirror rigidpy-0.0.4.tar.gz
loongson/mirror rigidpy-0.0.4-py3-none-any.whl