loongson/mirror: links for resconfig

loongson/mirror resconfig-20.4.3a0.tar.gz
loongson/mirror resconfig-20.4.3a0-py3-none-any.whl
loongson/mirror resconfig-20.4.2a0.tar.gz
loongson/mirror resconfig-20.4.2a0-py3-none-any.whl
loongson/mirror resconfig-20.4.0a0.tar.gz
loongson/mirror resconfig-20.4.0a0-py3-none-any.whl