remove and_ in where_pk_list test

Co-authored-by: Élie Bouttier <[email protected]>

src/utils_flask_sqla/tests/test_qfilter.py

@@ -28,7 +28,7 @@ def where_pk_query(cls, pk, **kwargs):
 
     @qfilter
     def where_pk_list(cls, pk, **kwargs):
-        return and_(*[BarModel.pk == pk])
+        return BarModel.pk == pk
 
 
 @pytest.fixture(scope="session")