loongson/pypi: links for pcart-import

loongson/mirror pcart-import-2.0.5.tar.gz
loongson/mirror pcart-import-2.0.4.tar.gz
loongson/mirror pcart-import-2.0.3.tar.gz
loongson/mirror pcart-import-2.0.2.tar.gz
loongson/mirror pcart-import-2.0.1.tar.gz
loongson/mirror pcart-import-2.0.tar.gz
loongson/mirror pcart-import-1.99.tar.gz