root/pypi: links for gubser

root/pypi gubser-0.9.tar.gz
root/pypi gubser-0.8.tar.gz
root/pypi gubser-0.7.tar.gz
root/pypi gubser-0.6.tar.gz
root/pypi gubser-0.5.tar.gz
root/pypi gubser-0.1.tar.gz