loongson/pypi: links for rollcred

loongson/mirror rollcred-0.0.6.tar.gz
loongson/mirror rollcred-0.0.6-py3-none-any.whl
loongson/mirror rollcred-0.0.5-py3-none-any.whl
loongson/mirror rollcred-0.0.4.tar.gz