Fix model name included in responses (#24663)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

vllm/entrypoints/openai/serving_pooling.py

@@ -91,7 +91,7 @@ class OpenAIServingPooling(OpenAIServing):
         if error_check_ret is not None:
             return error_check_ret
 
-        model_name = self._get_model_name(request.model)
+        model_name = self.models.model_name()
 
         request_id = f"pool-{self._base_request_id(raw_request)}"
         created_time = int(time.time())