test new image for fluxcd/kustomize-controller#527

We are looking for notifications spam around the time that this upgrade
goes into the cluster

(I have just re-enabled slack notifications so that I will be able to
tell one way or another)

clusters/moo-cluster/flux-system/kustomization.yaml

@@ -4,10 +4,10 @@ resources:
 - gotk-components.yaml
 - gotk-sync.yaml
 - flux-sync.yaml
-#images:
-#  - name: ghcr.io/fluxcd/kustomize-controller
-#    newName: ghcr.io/fluxcd/kustomize-controller
-#    newTag: rc-1cc795fa
+images:
+  - name: ghcr.io/fluxcd/kustomize-controller
+    newName: ghcr.io/fluxcd/kustomize-controller
+    newTag: rc-1cc795fa
 #patches:
 #  - target:
 #      version: v1