loongson/pypi: links for jsb3

loongson/mirror jsb3-0.4.1.tar.gz
loongson/mirror jsb3-0.4.tar.gz
loongson/mirror jsb3-0.3.tar.gz
loongson/mirror jsb3-0.2.tar.gz
loongson/mirror jsb3-0.1.tar.gz