Remove pydantic restricted namespaces from HuggingFaceInferenceAPIEmbedings (#26744)

without this `model_config` importing this package produces warnings
about "model_name" having conflicts with protected namespace "model_".

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---------

Co-authored-by: Chester Curme <chester.curme@gmail.com>

libs/community/langchain_community/embeddings/huggingface.py

@@ -396,6 +396,8 @@ class HuggingFaceInferenceAPIEmbeddings(BaseModel, Embeddings):
     additional_headers: Dict[str, str] = {}
     """Pass additional headers to the requests library if needed."""
 
+    model_config = ConfigDict(extra="forbid", protected_namespaces=())
+
     @property
     def _api_url(self) -> str:
         return self.api_url or self._default_api_url