[cli-ref] Update python-muranoclient to 0.12.0
[cli-ref] Update python-muranoclient to 0.12.0

Change-Id: Ic496eff1dc3f908a596840f96c1687abd3c37b96

openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals