Fix HfInference conversational (#2985)

* Fix HfInference Conversational

* fix test

Author: Wauplin

src/huggingface_hub/inference/_providers/hf_inference.py

@@ -82,7 +82,7 @@ def _prepare_payload_as_bytes(
 
 class HFInferenceConversational(HFInferenceTask):
     def __init__(self):
-        super().__init__("text-generation")
+        super().__init__("conversational")
 
     def _prepare_payload_as_dict(self, inputs: Any, parameters: Dict, mapped_model: str) -> Optional[Dict]:
         payload_model = parameters.get("model") or mapped_model

tests/test_inference_providers.py

@@ -470,7 +470,7 @@ def test_prepare_request_conversational(self, mocker):
         assert (
             request.url == "https://router.huggingface.co/hf-inference/models/username/repo_name/v1/chat/completions"
         )
-        assert request.task == "text-generation"
+        assert request.task == "conversational"
         assert request.model == "username/repo_name"
         assert request.json == {
             "model": "username/repo_name",