loongson/pypi: links for pygwin

loongson/mirror pygwin-0.3.0.tar.gz
loongson/mirror pygwin-0.3.0-py3-none-any.whl
loongson/mirror pygwin-0.2.0.tar.gz
loongson/mirror pygwin-0.2.0-py3-none-any.whl
loongson/mirror pygwin-0.1.0.tar.gz
loongson/mirror pygwin-0.0.1.tar.gz
loongson/mirror pygwin-0.0.0.tar.gz
loongson/mirror pygwin-0.0.0-py3.8.egg