Updated openstack/openstack
Project: openstack/python-openstackclient  6d589ac80130d5b0c1414d2514f3a28f9bafed92

add keystone v3 region object

Co-Authored-By: Steve Martinelli <stevemar@ca.ibm.com>

Change-Id: Ia6f607630dbf507681733c3ab3b9b7c55de30f49
Closes-Bug: #1387932