loongson/mirror: links for rfc6555

loongson/mirror rfc6555-0.1.0.tar.gz
loongson/mirror rfc6555-0.1.0-py2.py3-none-any.whl
loongson/mirror rfc6555-0.0.0.tar.gz
loongson/mirror rfc6555-0.0.0-py2.py3-none-any.whl