loongson/pypi: links for cubic-spline

loongson/mirror cubic-spline-0.1.1.tar.gz
loongson/mirror cubic_spline-0.1.1-py3-none-any.whl
loongson/mirror cubic-spline-0.1.0.tar.gz
loongson/mirror cubic_spline-0.1.0-py3-none-any.whl