Add typing for __iter__ in sqlalchemy.orm.Query (#7666)

Author: mano7onam

stubs/SQLAlchemy/sqlalchemy/orm/query.pyi

@@ -1,5 +1,5 @@
 from _typeshed import Self
-from typing import Any, Generic, TypeVar
+from typing import Any, Generic, Iterator, TypeVar
 
 from ..sql.annotation import SupportsCloneAnnotations
 from ..sql.base import Executable
@@ -92,7 +92,7 @@ class Query(_SelectFromElements, SupportsCloneAnnotations, HasPrefixes, HasSuffi
     def one_or_none(self): ...
     def one(self): ...
     def scalar(self) -> Any: ...  # type: ignore[override]
-    def __iter__(self): ...
+    def __iter__(self) -> Iterator[_T]: ...
     @property
     def column_descriptions(self): ...
     def instances(self, result_proxy, context: Any | None = ...): ...