loongson/pypi: links for stems

loongson/mirror stems-0.0.4.tar.gz
loongson/mirror stems-0.0.4-py3-none-any.whl
loongson/mirror stems-0.0.3.tar.gz
loongson/mirror stems-0.0.3-py3-none-any.whl
loongson/mirror stems-0.0.2.post0.tar.gz
loongson/mirror stems-0.0.2.post0-py3-none-any.whl
loongson/mirror stems-0.0.2.tar.gz
loongson/mirror stems-0.0.2-py3-none-any.whl