This is being done beacuse we don't make many changes to the
zuul-preview service but it runs in the hourly buildset starving deploy
runs. Since this doesn't change much we can move it to the daily run
instead.
If we need to update it we can run the playbook manually or land a
change to trigger it.
Change-Id: I89d2c712fcfd18bd4f694b2c90067295253b8836
ffe06527de