loongson/pypi: links for ppf-approx

loongson/mirror ppf_approx-0.1.2.tar.gz
loongson/mirror ppf_approx-0.1.2-py3-none-any.whl
loongson/mirror ppf_approx-0.1.1.tar.gz
loongson/mirror ppf_approx-0.1.1-py3-none-any.whl
loongson/mirror ppf_approx-0.1.0.tar.gz
loongson/mirror ppf_approx-0.1.0-py3-none-any.whl