[Inference] fix zero shot classification output parsing (#3561)

* fix zero shot classification output parsing

* nit

Author: hanouticelina

src/huggingface_hub/inference/_client.py

@@ -3196,10 +3196,7 @@ def zero_shot_classification(
         )
         response = self._inner_post(request_parameters)
         output = _bytes_to_dict(response)
-        return [
-            ZeroShotClassificationOutputElement.parse_obj_as_instance({"label": label, "score": score})
-            for label, score in zip(output["labels"], output["scores"])
-        ]
+        return ZeroShotClassificationOutputElement.parse_obj_as_list(output)
 
     def zero_shot_image_classification(
         self,

src/huggingface_hub/inference/_generated/_async_client.py

@@ -3246,10 +3246,7 @@ async def zero_shot_classification(
         )
         response = await self._inner_post(request_parameters)
         output = _bytes_to_dict(response)
-        return [
-            ZeroShotClassificationOutputElement.parse_obj_as_instance({"label": label, "score": score})
-            for label, score in zip(output["labels"], output["scores"])
-        ]
+        return ZeroShotClassificationOutputElement.parse_obj_as_list(output)
 
     async def zero_shot_image_classification(
         self,