loongson/mirror: links for bootstrapped-ng

loongson/mirror bootstrapped-ng-0.1.3.tar.gz
loongson/mirror bootstrapped_ng-0.1.3-py3-none-any.whl
loongson/mirror bootstrapped-ng-0.1.2.tar.gz
loongson/mirror bootstrapped_ng-0.1.2-py3-none-any.whl