Copybara import of the project:

--
709e1dd079d03d7eb4d742b9448ed3d1b946ff30 by joao.campista <joaocampista@proton.me>:

feat: add ordering to recent events in database session service
COPYBARA_INTEGRATE_REVIEW=https://github.com/google/adk-python/pull/454 from lugui-co:main 912503f972c9cbd8982f2b7f8b210d4e0fe08b69
PiperOrigin-RevId: 753013663

src/google/adk/sessions/database_session_service.py

@@ -386,6 +386,7 @@ class DatabaseSessionService(BaseSessionService):
               else True
           )
           .limit(config.num_recent_events if config else None)
+          .order_by(StorageEvent.timestamp.asc())
           .all()
       )