Updated openstack/openstack
Project: openstack-infra/devstack-gate  9f8fb3d9e7ea43ce240b2dfbee5875e5b1851cdb

Add setting for INSTALL_TESTONLY_PACKAGES

Some jobs need to have the test packages installed, such as
check-swift-dsvm-functional.

Change-Id: Iac538c07cd33f130ccb33f3b2ca8c92a17568553
closes-bug: #1341507