Updated openstack/openstack
Project: openstack/tempest  922d47f0c3d85b23fc4d61683be0eb870d7a3297
null
Use correct types for thresholds

Currently in this template parameters have type Number, but
CloudWatchAlarm has threshold type String. This fix change
Type parameters to String.

Change-Id: If7030063f8bae6b70648a07acb086c341a75373f