loongson/mirror: links for cardsboard

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