toy-indexing.xml: Update milestone-5 revisions

Change-Id: Ia67f883f748384e49697e534d9046cc309da0764
Reviewed-on: http://review.couchbase.org/43483
Reviewed-by: Sarath Lakshman <sarath@couchbase.com>
Tested-by: Sarath Lakshman <sarath@couchbase.com>