nuwa/dev: links for url-backoff-registry

root/pypi url_backoff_registry-1.1.1.tar.gz
root/pypi url_backoff_registry-1.1.1-py3-none-any.whl
root/pypi url_backoff_registry-1.1.0.tar.gz
root/pypi url_backoff_registry-1.1.0-py3-none-any.whl
root/pypi url_backoff_registry-0.1.0.tar.gz
root/pypi url_backoff_registry-0.1.0-py3-none-any.whl