loongson/mirror: links for stacks-snippet

loongson/mirror stacks-snippet-0.1.1.tar.gz
loongson/mirror stacks_snippet-0.1.1-py2.py3-none-any.whl
loongson/mirror stacks-snippet-0.1.tar.gz
loongson/mirror stacks_snippet-0.1-py2.py3-none-any.whl