fix test

Author: maxime.c

airbyte_cdk/sources/declarative/parsers/model_to_component_factory.py

@@ -2244,7 +2244,7 @@ def _build_concurrent_cursor(
         else:
             state_transformations = []
 
-        if model.incremental_sync and stream_slicer:
+        if model.incremental_sync and stream_slicer and not isinstance(stream_slicer, SinglePartitionRouter):
             return self.create_concurrent_cursor_from_perpartition_cursor(  # type: ignore # This is a known issue that we are creating and returning a ConcurrentCursor which does not technically implement the (low-code) StreamSlicer. However, (low-code) StreamSlicer and ConcurrentCursor both implement StreamSlicer.stream_slices() which is the primary method needed for checkpointing
                 state_manager=self._connector_state_manager,
                 model_type=DatetimeBasedCursorModel,