Add a data-science-pipelines-operator label for DSPO pods

Author: DharmitD

config/manager/manager.yaml

@@ -21,6 +21,7 @@ spec:
         kubectl.kubernetes.io/default-container: manager
       labels:
         control-plane: controller-manager
+        app.kubernetes.io/created-by: data-science-pipelines-operator
     spec:
       securityContext:
         runAsNonRoot: true