[cli-ref] Update python-senlinclient to 1.2.0
[cli-ref] Update python-senlinclient to 1.2.0

Change-Id: I0fea983b9bc43304c32b6c9630cb64553cf17efd

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