loongson/pypi: links for dns-cache

loongson/mirror dns-cache-0.3.0.tar.gz
loongson/mirror dns_cache-0.3.0-py2.py3-none-any.whl
loongson/mirror dns-cache-0.2.0.tar.gz
loongson/mirror dns_cache-0.2.0-py2.py3-none-any.whl
loongson/mirror dns-cache-0.1.0.tar.gz
loongson/mirror dns_cache-0.1.0-py2.py3-none-any.whl