loongson/pypi: links for isitdown

loongson/mirror isitdown-0.0.9.tar.gz
loongson/mirror isitdown-0.0.8.tar.gz
loongson/mirror isitdown-0.0.7.tar.gz
loongson/mirror isitdown-0.0.3.tar.gz
loongson/mirror isitdown-0.0.3-py3-none-any.whl