loongson/pypi: links for slice-ref

loongson/mirror slice-ref-0.0.2.tar.gz
loongson/mirror slice_ref-0.0.2-py3-none-any.whl
loongson/mirror slice-ref-0.0.1.tar.gz
loongson/mirror slice_ref-0.0.1-py3-none-any.whl