[red-knot] Add type inference for loop variables inside comprehension scopes (#13251)

crates/red_knot_python_semantic/src/semantic_index/builder.rs

@@ -689,6 +689,7 @@ where
                                     iterable: &node.iter,
                                     target: name_node,
                                     first,
+                                    is_async: node.is_async,
                                 },
                             );
                         }