Update os-apply-config to 6.0.0
Update os-apply-config to 6.0.0

Change-Id: If732b8f67a5740b285ea44b0c9730a102734242c
Depends-on: I3d139d4308e7edbdec03ecb3576e9e185f6ba3be

openstack/rpm-packaging,openstack/rpm-packaging