toy-indexing.xml: Update repo revisions

Change-Id: I78ff15411037452c9c2215e82003bdc5abf60caf
Reviewed-on: http://review.couchbase.org/42478
Reviewed-by: Sarath Lakshman <sarath@couchbase.com>
Tested-by: Sarath Lakshman <sarath@couchbase.com>