loongson/pypi: links for bottlecasbridge

loongson/mirror BottleCasBridge-21.9.21.tar.gz
loongson/mirror BottleCasBridge-21.9.21-py3-none-any.whl
loongson/mirror BottleCasBridge-21.9.15.tar.gz
loongson/mirror BottleCasBridge-21.9.15-py3-none-any.whl