loongson/pypi: links for stitch-n-split

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