Update module github.com/rabbitmq/cluster-operator/v2 to v2.16.1

Author: OpenStack K8s CI

go.mod

@@ -57,7 +57,7 @@ require (
 	github.com/prometheus/client_model v0.6.1 // indirect
 	github.com/prometheus/common v0.55.0 // indirect
 	github.com/prometheus/procfs v0.15.1 // indirect
-	github.com/rabbitmq/cluster-operator/v2 v2.9.0 // indirect
+	github.com/rabbitmq/cluster-operator/v2 v2.16.1 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	go.uber.org/multierr v1.11.0 // indirect