loongson/pypi: links for downcnpj

loongson/mirror downcnpj-0.0.5.tar.gz
loongson/mirror downcnpj-0.0.4.tar.gz
loongson/mirror downcnpj-0.0.3.tar.gz
loongson/mirror downcnpj-0.0.2.tar.gz
loongson/mirror downcnpj-0.0.1.tar.gz