loongson/pypi: links for ttf-opensans

loongson/mirror ttf-opensans-2020.10.30.tar.gz
loongson/mirror ttf_opensans-2020.10.30-py3-none-any.whl
loongson/mirror ttf-opensans-2020.10.29.tar.gz
loongson/mirror ttf_opensans-2020.10.29-py3.9.egg
loongson/mirror ttf_opensans-2020.10.29-py3-none-any.whl