loongson/mirror: links for dis-bg-remover

loongson/mirror dis_bg_remover-0.1.2.tar.gz
loongson/mirror dis_bg_remover-0.1.2-py3-none-any.whl
loongson/mirror dis_bg_remover-0.1.1.tar.gz
loongson/mirror dis_bg_remover-0.1.1-py3-none-any.whl