root/pypi: links for rez-proxy

root/pypi rez_proxy-1.2.0.tar.gz
root/pypi rez_proxy-1.2.0-py3-none-any.whl
root/pypi rez_proxy-1.1.6.tar.gz
root/pypi rez_proxy-1.1.6-py3-none-any.whl