loongson/mirror: links for maildiff

loongson/mirror maildiff-3.1.0.tar.gz
loongson/mirror maildiff-3.1.0-py3-none-any.whl
loongson/mirror maildiff-3.0.1.tar.gz
loongson/mirror maildiff-3.0.1-py3-none-any.whl
loongson/mirror maildiff-2.0.0.tar.gz
loongson/mirror maildiff-2.0.0-py3-none-any.whl
loongson/mirror maildiff-1.3.2.tar.gz
loongson/mirror maildiff-1.3.0.tar.gz
loongson/mirror maildiff-1.2.1.tar.gz
loongson/mirror maildiff-1.2.0.tar.gz
loongson/mirror maildiff-1.1.2.tar.gz
loongson/mirror maildiff-1.1.1.tar.gz