Use Incomplete instead of Any in __getattr__ (#8903)

stubs/pytest-lazy-fixture/pytest_lazyfixture.pyi

@@ -1,3 +1,4 @@
+from _typeshed import Incomplete
 from collections.abc import Iterable
 from typing import Any, overload
 
@@ -12,4 +13,4 @@ def lazy_fixture(names: str) -> LazyFixture: ...
 def lazy_fixture(names: Iterable[str]) -> list[LazyFixture] | Any: ...
 def is_lazy_fixture(val: Any) -> bool: ...
 def pytest_configure() -> None: ...
-def __getattr__(name: str) -> Any: ...  # incomplete
+def __getattr__(name: str) -> Incomplete: ...