loongson/pypi: links for colour-stacking

loongson/mirror colour-stacking-0.3.tar.gz
loongson/mirror colour_stacking-0.3-py3-none-any.whl
loongson/mirror colour-stacking-0.2.tar.gz
loongson/mirror colour_stacking-0.2-py3-none-any.whl
loongson/mirror colour-stacking-0.1.tar.gz
loongson/mirror colour_stacking-0.1-py3-none-any.whl