`oc adm must-gather` should not exit code 1 when cluster with abnormal operator

when cluster with abnormal operator status , run the `oc adm must-gather` will exit with code 1 .

4.12/4.13

     [must-gather      ] OUT clusterrolebinding.rbac.authorization.k8s.io/must-gather-gfcpc deleted
      
      
      Reprinting Cluster State:
      When opening a support case, bugzilla, or issue please include the following summary data along with any other requested information:
      ClusterID: 0ba6ca81-e6d8-4d15-b345-70f81bd5a005
      ClusterVersion: Stable at "4.13.0-0.nightly-2023-04-01-062001"
      ClusterOperators:
      	clusteroperator/cloud-credential is not upgradeable because Upgradeable annotation cloudcredential.openshift.io/upgradeable-to on cloudcredential.operator.openshift.io/cluster object needs updating before upgrade. See Manually Creating IAM documentation for instructions on preparing a cluster for upgrade.
      	clusteroperator/ingress is progressing: ingresscontroller "test-34166" is progressing: IngressControllerProgressing: One or more status conditions indicate progressing: DeploymentRollingOut=True (DeploymentRollingOut: Waiting for router deployment rollout to finish: 0 of 1 updated replica(s) are available...
      ).
      Not all ingress controllers are available.
      
      
      
      STDERR:
      error: yaml: line 7: did not find expected key
      [08:06:46] INFO> Exit Status: 1
Expected results:
{code:none}
abnormal status of any of the operators should not affect must-gather's exit code