loongson/pypi: links for ethereumd-proxy

loongson/mirror ethereumd-proxy-0.3.0.tar.gz
loongson/mirror ethereumd_proxy-0.3.0-py3-none-any.whl
loongson/mirror ethereumd-proxy-0.2.0.tar.gz
loongson/mirror ethereumd_proxy-0.2.0-py3-none-any.whl
loongson/mirror ethereumd-proxy-0.1.2.tar.gz
loongson/mirror ethereumd_proxy-0.1.2-py3-none-any.whl