[Bug][UI Next]Modify the display state logic of save buttons under workflow definition (#9403)

* Modifying site Configurations

* Modify the display state logic of save buttons under workflow definition

dolphinscheduler-ui-next/src/views/projects/workflow/components/dag/dag-toolbar.tsx

@@ -481,6 +481,7 @@ export default defineComponent({
             type='info'
             secondary
             round
+            disabled={props.definition?.processDefinition?.releaseState === 'ONLINE'}
             onClick={() => {
               context.emit('saveModelToggle', true)
             }}