loongson/pypi: links for piston-mini-client

loongson/mirror piston-mini-client-0.7.5.tar.gz
loongson/mirror piston-mini-client-0.7.4.tar.gz
loongson/mirror piston-mini-client-0.7.3.tar.gz
loongson/mirror piston-mini-client-0.7.2.tar.gz
loongson/mirror piston-mini-client-0.7.1.tar.gz
loongson/mirror piston-mini-client-0.7.tar.gz
loongson/mirror piston-mini-client-0.6.tar.gz
loongson/mirror piston-mini-client-0.5.tar.gz
loongson/mirror piston-mini-client-0.4.tar.gz
loongson/mirror piston-mini-client-0.3.tar.gz