Disable test_volume_backup_restore for lio-barbican job
Tempest recently added this test and it is
failing here.
DEVSTACK_GATE_TEMPEST_REGEX+='(?!.*VolumesBackupsTest.test_volume_backup_create_get_detailed_list_restore_delete)'
DEVSTACK_GATE_TEMPEST_REGEX+='(?!.*VolumesBackupsTest.test_volume_snapshot_backup)'
DEVSTACK_GATE_TEMPEST_REGEX+='(?!.*VolumesBackupsV39Test.test_update_backup)'
+ DEVSTACK_GATE_TEMPEST_REGEX+='(?!.*TestVolumeBackupRestore.test_volume_backup_restore)'
export DEVSTACK_GATE_TEMPEST_REGEX
export BRANCH_OVERRIDE=default
if [ "$BRANCH_OVERRIDE" != "default" ] ; then
