loongson/pypi: links for punycode

loongson/mirror punycode-0.2.1.tar.gz
loongson/mirror punycode-0.2.1-py3-none-any.whl
loongson/mirror punycode-0.2.0.tar.gz
loongson/mirror punycode-0.2.0-py3-none-any.whl
loongson/mirror punycode-0.1.0.tar.gz
loongson/mirror punycode-0.1.0-py3-none-any.whl