fix workflow updating (#5567)

* retain id through workflow state so that we correctly update or save new

* lint

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Co-authored-by: Mary Hipp <maryhipp@Marys-MacBook-Air.local>

invokeai/frontend/web/src/features/nodes/util/workflow/buildWorkflow.ts

@@ -24,6 +24,7 @@ const workflowKeys = [
   'notes',
   'exposedFields',
   'meta',
+  'id',
 ] satisfies (keyof WorkflowV2)[];
 
 export type BuildWorkflowFunction = (arg: BuildWorkflowArg) => WorkflowV2;