[cli-ref] Update python-heatclient to 1.5.0
[cli-ref] Update python-heatclient to 1.5.0

Change-Id: I2fe943b909ea11b43662ecf141c793ad18802451

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