loongson/pypi: links for interface-proxy

loongson/mirror interface_proxy-0.2.1b0-py3-none-any.whl
loongson/mirror interface_proxy-0.2.0b0-py3-none-any.whl
loongson/mirror interface_proxy-0.1.1b0-py3-none-any.whl
loongson/mirror interface_proxy-0.1.0b0-py3-none-any.whl