fix: permission issue for quotation item during update item

(cherry picked from commit 58b8af0)

Author: Nishka Gosalia

erpnext/controllers/accounts_controller.py

@@ -4122,7 +4122,7 @@ def validate_fg_item_for_subcontracting(new_data, is_new):
 			child_item.idx = len(parent.items) + 1
 			child_item.insert()
 		else:
-			child_item.save()
+			parent.save()
 
 	parent.reload()
 	parent.flags.ignore_validate_update_after_submit = True