This replaces the old zk04 server with a new zk03 server. This is part
of Noble replacements for older servers.
Note that zk04 was also our test node and I've updated that node to be
zk99 in testing. This way we don't need to update our tests the next
time we replace zookeeper servers.
Change-Id: Icb33befb9042a1d09358a6918df9576127b68931
5a27433022