gituser/docker: links for attrs

gituser/docker attrs-21.2.0-py2.py3-none-any.whl
gituser/production attrs-19.3.0.tar.gz
gituser/docker attrs-19.3.0-py2.py3-none-any.whl
gituser/production attrs-18.1.0.tar.gz
gituser/production attrs-18.1.0-py2.py3-none-any.whl