loongson/pypi: links for googleappenginecloudstorageclientpy3

loongson/mirror GoogleAppEngineCloudStorageClientPy3-3.0.0.tar.gz
loongson/mirror GoogleAppEngineCloudStorageClientPy3-3.0.0-py3-none-any.whl
loongson/mirror GoogleAppEngineCloudStorageClientPy3-3.0.0a1.tar.gz
loongson/mirror GoogleAppEngineCloudStorageClientPy3-3.0.0a1-py3-none-any.whl