Update nodes in notifications documentation
Update nodes in notifications documentation

This updates the notifications documentation so that the
node information in the sample node-related notifications
reflect the latest versions of the notification payloads.
Which includes the driver_internal_info recently added to
version 1.16 of NodeSetProvisionStatePayload.

Change-Id: I87fb443ff393a2a58f9d19a9011df062f85af3af
Story: #2008054
Task: #40771

openstack/ironic,openstack/ironic