Description of problem:
Version-Release number of selected component (if applicable):
Using an incorrect clusterLabelSelector operator in a CGU results in the CGU hanging until it is manually edited. It will not progress nor can it be deleted.

Always

1. Configure a hub cluster with TALM 4.12, ArgoCD, and a managed cluster 
2. Create a policy targeting the managed cluster which triggers a minor change i.e changing a catalog source.
3. Create a CGU which enables the policy on a target cluster using matchExpressions function. example:
    - matchExpressions: 
        - key: label3
          operator: In
          values: 
            - value3
change the "operator: In" to the invalid syntax "operator: in". 
4. Verify that the CGU status is blank.
5. Verify that there is an error in the container log similar to:
"error": "cannot obtain all the details about the clusters in the CR: cannot obtain the CGU cluster list: \"in\" is not a valid pod selector operator"}
6. Attempt to delete the CGU. The "oc delete cgu" command will hang. 
7. Manually edit the CGU to fix the syntax error "in" -> "In" . The CGU will then be deleted.

CGU is created but status is empty. CGU cannot be deleted. oc delete command hangs.

CGU should not hang. CGU status should probably be updated with an error. A Reconciler error is reported in the container log but it is not passed through to the cgu.

[kni@registry.kni-qe-17 ~]$ cat cgu_talmtest_hang.yaml 
apiVersion: ran.openshift.io/v1alpha1
kind: ClusterGroupUpgrade
metadata:
  name: talm412test
  namespace: default
spec:
  clusterLabelSelectors: 
    - matchExpressions:
        - key: sites
          operator: in       #note incorrect capitalization of operator#
          values: 
            - test-sno-invalid
  enable: true
  managedPolicies:
  - common-config-policy
  remediationStrategy:
    maxConcurrency: 10
    timeout: 240


[kni@registry.kni-qe-17 ~]$ oc apply -f ./cgu_talmtest_hang.yaml 
clustergroupupgrade.ran.openshift.io/talm412test created


[kni@registry.kni-qe-17 ~]$ oc get cgu -A
NAMESPACE   NAME          UPGRADE STATE   AGE
default     talm412test                   4s

 [kni@registry.kni-qe-17 ~]$ oc get cgu talm412test -o yaml
apiVersion: ran.openshift.io/v1alpha1
kind: ClusterGroupUpgrade
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"ran.openshift.io/v1alpha1","kind":"ClusterGroupUpgrade","metadata":{"annotations":{},"name":"talm412test","namespace":"default"},"spec":{"clusterLabelSelectors":[{"matchExpressions":[{"key":"sites","operator":"in","values":["test-sno-invalid"]}]}],"enable":true,"managedPolicies":["common-config-policy"],"remediationStrategy":{"maxConcurrency":10,"timeout":240}}}
  creationTimestamp: "2022-09-27T13:38:38Z"
  finalizers:
  - ran.openshift.io/cleanup-finalizer
  generation: 2
  name: talm412test
  namespace: default
  resourceVersion: "75363493"
  uid: 633eefbc-6197-468b-a806-e2a34a315960
spec:
  actions:
    afterCompletion:
      deleteObjects: true
    beforeEnable: {}
  backup: false
  clusterLabelSelectors:
  - matchExpressions:
    - key: sites
      operator: in
      values:
      - test-sno-invalid
  enable: true
  managedPolicies:
  - common-config-policy
  preCaching: false
  remediationStrategy:
    maxConcurrency: 10
    timeout: 240


[kni@registry.kni-qe-17 ~]$ oc logs cluster-group-upgrades-controller-manager-5bdbd9856b-vlg29 -n openshift-operators -c manager|tail -7
2022-09-27T13:41:23.264Z        INFO    controllers.ClusterGroupUpgrade Loaded CGU      {"name": "default/talm412test", "version": "75366807"}
2022-09-27T13:41:23.265Z        INFO    controllers.ClusterGroupUpgrade Finish reconciling CGU  {"name": "default/talm412test", "requeueRightAway": false}
2022-09-27T13:41:23.265Z        ERROR   controller-runtime.manager.controller.clustergroupupgrade       Reconciler error        {"reconciler group": "ran.openshift.io", "reconciler kind": "ClusterGroupUpgrade", "name": "talm412test", "namespace": "default", "error": "cannot obtain all the details about the clusters in the CR: cannot obtain the CGU cluster list: \"in\" is not a valid pod selector operator"}
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem
        /remote-source/app/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:253
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2
        /remote-source/app/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:214