Fix: update object class modification to use async context in LDAP schema upgrade

Author: m.shvets

app/alembic/versions/275222846605_initial_ldap_schema.py

@@ -367,8 +367,9 @@ async def _create_attribute_types(connection: AsyncConnection) -> None:  # noqa:
 
     op.run_async(_create_attribute_types)
 
-    async def _modify_object_classes(connection: AsyncConnection) -> None:
-        session = AsyncSession(bind=connection)
+    async def _modify_object_classes(connection: AsyncConnection) -> None:  # noqa: ARG001
+        async with container(scope=Scope.REQUEST) as cnt:
+            session = await cnt.get(AsyncSession)
 
         for oc_name, at_names in (
             ("user", ["nsAccountLock", "shadowExpire"]),