PATCH: disable multikueue by default

Author: Bobbins228

config/rhoai/manager_config_patch.yaml

@@ -12,7 +12,7 @@ spec:
         args:
         - "--config=/controller_manager_config.yaml"
         - "--zap-log-level=2"
-        - "--feature-gates=VisibilityOnDemand=false,LocalQueueMetrics=true"
+        - "--feature-gates=VisibilityOnDemand=false,LocalQueueMetrics=true,MultiKueue=false"
         volumeMounts:
         - name: manager-config
           mountPath: /controller_manager_config.yaml