loongson/pypi: links for protstab2

loongson/mirror ProTstab2-2.0.2.tar.gz
loongson/mirror ProTstab2-2.0.1.tar.gz
loongson/mirror ProTstab2-2.0.0.tar.gz
loongson/mirror ProTstab2-1.0.2.tar.gz
loongson/mirror ProTstab2-1.0.1.tar.gz
loongson/mirror ProTstab2-1.0.0.tar.gz