nuwa/production: links for pproxy2

root/pypi pproxy2-2.3.1.tar.gz
root/pypi pproxy2-2.3.1-py3-none-any.whl
root/pypi pproxy2-2.3.0.tar.gz
root/pypi pproxy2-2.3.0-py3-none-any.whl
root/pypi pproxy2-2.2.0.tar.gz
root/pypi pproxy2-2.2.0-py3-none-any.whl
root/pypi pproxy2-2.1.0.tar.gz
root/pypi pproxy2-2.1.0-py3-none-any.whl
root/pypi pproxy2-2.0.0.tar.gz
root/pypi pproxy2-2.0.0-py3-none-any.whl