michaelg/dev: links for duckbridge

root/pypi duckbridge-0.4.1.tar.gz
root/pypi duckbridge-0.4.1-py3-none-any.whl
root/pypi duckbridge-0.4.0.tar.gz
root/pypi duckbridge-0.4.0-py3-none-any.whl
root/pypi duckbridge-0.3.0.tar.gz
root/pypi duckbridge-0.3.0-py3-none-any.whl