[cli-ref] Update python-manilaclient to 1.8.0
[cli-ref] Update python-manilaclient to 1.8.0

Change-Id: I03c026a4720cc82fcf784d5b63b141c82706bb7a

AlekhyaMallina-Vedams/openstack-manuals,openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals