OwnerRefInvalidNamespace rolebinding/keda-auth-reader in kube-system

After installing KEDA GA, once the KedaController CR is created, it's observed the error below:

$ oc get events -n kube-system|grep -i keda
4m51s       Warning   OwnerRefInvalidNamespace   rolebinding/keda-auth-reader   ownerRef [keda.sh/v1alpha1/KedaController, namespace: kube-system, name: keda, uid: 1e9a6cd3-17e8-4dec-832f-64ab6db759fe] does not exist in namespace "kube-system"
...

$ oc get clusterversion
NAME      VERSION   AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.13.1    True        False         3h55m   Cluster version is 4.13.1

$ oc get csv -n openshift-keda
NAME                                    DISPLAY                            VERSION      REPLACES                        PHASE
custom-metrics-autoscaler.v2.10.1-253   Custom Metrics Autoscaler          2.10.1-253                                   Succeeded

Always 

1. Install KEDA GA version - 2.10.1-253 

2. Create KedaController CRD, as for example:
```
$ cat kedaController.yaml 
apiVersion: keda.sh/v1alpha1
kind: KedaController
metadata:
  creationTimestamp: "2023-06-14T12:25:31Z"
  finalizers:
  - finalizer.kedacontroller.keda.sh
  generation: 1
  name: keda
  namespace: openshift-keda
  resourceVersion: "944510"
  uid: e39a65a8-67a2-40e6-85b3-726a4307b3b6
spec:
  admissionWebhooks:
    logEncoder: console
    logLevel: info
  metricsServer:
    logLevel: "0"
  operator:
    logEncoder: console
    logLevel: info
  watchNamespace: ""
```

3. Verify logs in the kube-system namespace indicating `OwnerRefInvalidNamespace rolebinding/keda-auth-reader`

```
$ oc get events -n kube-system|grep -i keda 4m51s       Warning   OwnerRefInvalidNamespace   rolebinding/keda-auth-reader   ownerRef [keda.sh/v1alpha1/KedaController, namespace: kube-system, name: keda, uid: 1e9a6cd3-17e8-4dec-832f-64ab6db759fe] does not exist in namespace "kube-system" ... 
```

4. Confirm that the roledinding doesn't exist in the kube-system namespace:

```
$ oc get rolebinding/keda-auth-reader -n kube-system
Error from server (NotFound): rolebindings.rbac.authorization.k8s.io "keda-auth-reader" not found
```

Observed OwnerRefInvalidNamespace in the kube-system namespace 

```
$ oc get events -n kube-system|grep -i keda 4m51s       Warning   OwnerRefInvalidNamespace   rolebinding/keda-auth-reader   ownerRef [keda.sh/v1alpha1/KedaController, namespace: kube-system, name: keda, uid: 1e9a6cd3-17e8-4dec-832f-64ab6db759fe] does not exist in namespace "kube-system" ...
```

Not errors