[cli-ref] Update python-ironicclient to 1.4.0
[cli-ref] Update python-ironicclient to 1.4.0

Change-Id: Ic643276d04da43b7dac47af7d562472436c260fd

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