fix: Resolve LogRecord attribute conflict in event manager logging (#802)

## Summary

- Renamed `extra={'message': message}` to `extra={'raw_message':
message}` in `ApifyEventManager._process_platform_messages` — the
`message` key overwrites Python's built-in `LogRecord.message`
attribute, corrupting the log record (especially visible on Python
3.13+).
- Added `caplog.set_level(logging.INFO, logger='apify')` to
`test_unknown_event_is_logged` — the unknown event is logged at `INFO`
level but `caplog` only captures `WARNING`+ by default, causing the
assertion to always fail.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: vdusek

src/apify/events/_apify_event_manager.py

@@ -133,7 +133,7 @@ async def _process_platform_messages(self, ws_url: str) -> None:
                             await self._emit_persist_state_event_rec_task.stop()
                             self.emit(event=Event.PERSIST_STATE, event_data=EventPersistStateData(is_migrating=True))
                     except Exception:
-                        logger.exception('Cannot parse Actor event', extra={'message': message})
+                        logger.exception('Cannot parse Actor event', extra={'raw_message': message})
         except Exception:
             logger.exception('Error in websocket connection')
             if self._connected_to_platform_websocket is not None:

tests/unit/events/test_apify_event_manager.py

@@ -266,6 +266,7 @@ def listener(data: Any) -> None:
 
 async def test_unknown_event_is_logged(monkeypatch: pytest.MonkeyPatch, caplog: pytest.LogCaptureFixture) -> None:
     """Test that unknown events are logged and not emitted."""
+    caplog.set_level(logging.INFO, logger='apify')
     async with (
         _platform_ws_server(monkeypatch) as (connected_ws_clients, client_connected),
         ApifyEventManager(Configuration.get_global_configuration()),