loongson/pypi: links for tensorflow-protobuf

loongson/mirror tensorflow-protobuf-2.11.0.tar.gz
loongson/mirror tensorflow_protobuf-2.11.0-py3-none-any.whl
loongson/mirror tensorflow-protobuf-2.7.0.tar.gz
loongson/mirror tensorflow_protobuf-2.7.0-py3-none-any.whl
loongson/mirror tensorflow-protobuf-2.3.0.tar.gz
loongson/mirror tensorflow_protobuf-2.3.0-py3-none-any.whl