fix: handle nested Option<Model> in FromQueryResult missing struct for test

Author: denyszhak

tests/from_query_result_tests.rs

@@ -77,6 +77,14 @@ async fn from_query_result_left_join_does_not_exist() {
     ctx.delete().await;
 }
 
+#[derive(FromQueryResult)]
+struct CakeWithOptionalBakeryModel {
+    id: i32,
+    name: String,
+    #[sea_orm(nested)]
+    bakery: Option<bakery::Model>,
+}
+
 #[sea_orm_macros::test]
 async fn from_query_result_left_join_with_optional_model_does_not_exist() {
     let ctx =