DAS-None: Add cause to re-raised exception.

I didn't know, but the message from the caught exception is not added directly
to the raised exception.

Author: flamingbear

harmony_service/adapter.py

@@ -145,7 +145,7 @@ def process_item(self, item: Item, source: HarmonySource) -> Item:
 
         except Exception as exception:
             self.logger.exception(exception)
-            raise HyBIGServiceError from exception
+            raise HyBIGServiceError(str(exception)) from exception
         finally:
             rmtree(working_directory)