fix workflow updating (#5567)

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

* lint

---------

Co-authored-by: Mary Hipp <[email protected]>

Author: maryhipp

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;