loongson/pypi: links for validators-b2bit

loongson/mirror validators-b2bit-2021.9.31.tar.gz
loongson/mirror validators-b2bit-2021.9.30.tar.gz
loongson/mirror validators-b2bit-2021.9.27.tar.gz
loongson/mirror validators-b2bit-2021.9.24.tar.gz