loongson/mirror: links for gcn-manager

loongson/mirror gcn_manager-1.0.6.tar.gz
loongson/mirror gcn_manager-1.0.6-py3-none-any.whl
loongson/mirror gcn_manager-1.0.5.tar.gz
loongson/mirror gcn_manager-1.0.5-py3-none-any.whl
loongson/mirror gcn_manager-1.0.4.tar.gz
loongson/mirror gcn_manager-1.0.4-py3-none-any.whl