loongson/pypi: links for pyplthook

loongson/mirror PyPLTHook-1.0.0.post3.tar.gz
loongson/mirror PyPLTHook-1.0.0.post2.tar.gz
loongson/mirror PyPLTHook-1.0.0.post1.tar.gz
loongson/mirror PyPLTHook-1.0.0.tar.gz