loongson/pypi: links for stembranch

loongson/mirror stembranch-1.1.tar.gz
loongson/mirror stembranch-1.1-py3-none-any.whl
loongson/mirror stembranch-1.0.2.tar.gz
loongson/mirror stembranch-1.0.2-py3-none-any.whl