fix(helm): Use correct controller labels for service selector

Author: donch

helm/cache-registry/templates/webhook-service.yaml

@@ -7,4 +7,4 @@ spec:
   - port: 443
     targetPort: 9443
   selector:
-    control-plane: controller-manager
+{{- include "cache-registry.controllers-selectorLabels" . | nindent 4 }}