loongson/pypi: links for styrofoam

loongson/mirror styrofoam-1.0.0a3-py3.7.egg
loongson/mirror styrofoam-1.0.0a3-py2.py3-none-any.whl
loongson/mirror styrofoam-1.0.0a2.tar.gz
loongson/mirror styrofoam-1.0.0a2-py3.7.egg
loongson/mirror styrofoam-1.0.0a2-py2.py3-none-any.whl