cluster: set ceph-waw3 mon replicas to 1

This reflects current production. This needs to get bumped up to 3 at some point as otherwise we lose HA for this cluster.

Change-Id: Ie5937e6a216b635ecbc4c82ecd182a410167c3f8
diff --git a/cluster/kube/cluster.jsonnet b/cluster/kube/cluster.jsonnet
index 9bbb259..c07e5b9 100644
--- a/cluster/kube/cluster.jsonnet
+++ b/cluster/kube/cluster.jsonnet
@@ -372,7 +372,7 @@
             waw3: rook.Cluster(k0.cluster.rook, "ceph-waw3") {
                 spec: {
                     mon: {
-                        count: 3,
+                        count: 1,
                         allowMultiplePerNode: false,
                     },
                     storage: {