loongson/mirror: links for connect-4

loongson/mirror connect_4-0.1.0b3.tar.gz
loongson/mirror connect_4-0.1.0b3-py3-none-any.whl
loongson/mirror connect_4-0.1.0b2.tar.gz
loongson/mirror connect_4-0.1.0b2-py3-none-any.whl
loongson/mirror connect_4-0.1.0b1.tar.gz
loongson/mirror connect_4-0.1.0b1-py3-none-any.whl