Refactor: use _log_signal in _trace_after_publish for consistency

Author: diogosilva30

instrumentation/opentelemetry-instrumentation-celery/src/opentelemetry/instrumentation/celery/__init__.py

@@ -611,11 +611,7 @@ def _trace_after_publish(*args: object, **kwargs: object) -> None:
         task = utils.retrieve_task_from_sender(kwargs)
         task_id = utils.retrieve_task_id_from_message(kwargs)
         task_name = task.name if task is not None else None
-        logger.debug(
-            "after_task_publish signal received task_id=%s task_name=%s",
-            task_id,
-            task_name,
-        )
+        _log_signal("after_task_publish", task_id, task_name, None)
 
         if task is None or task_id is None:
             return