Apply code formatting with ruff

Author: rahul-tuli

src/llmcompressor/core/lifecycle.py

@@ -206,9 +206,9 @@ def event(
             if data is not None:
                 mod_data.append(data)
 
-        assert event is not None, (
-            f"Event lifecycle did not return an event for {event_type}"
-        )
+        assert (
+            event is not None
+        ), f"Event lifecycle did not return an event for {event_type}"
 
         return mod_data