loongson/mirror: links for alumath-group12

loongson/mirror alumath_group12-0.1.2.tar.gz
loongson/mirror alumath_group12-0.1.2-py3-none-any.whl
loongson/mirror alumath_group12-0.1.1.tar.gz
loongson/mirror alumath_group12-0.1.1-py3-none-any.whl