patch: remove usage of llm, chat model __call__ (#20788)

- `llm(prompt)` -> `llm.invoke(prompt)`
- `llm(prompt=prompt` -> `llm.invoke(prompt)` (same with `messages=`)
- `llm(prompt, callbacks=callbacks)` -> `llm.invoke(prompt,
config={"callbacks": callbacks})`
- `llm(prompt, **kwargs)` -> `llm.invoke(prompt, **kwargs)`

libs/community/langchain_community/llms/xinference.py

@@ -62,7 +62,7 @@ class Xinference(LLM):
             model_uid = {model_uid} # replace model_uid with the model UID return from launching the model
         )
 
-        llm(
+        llm.invoke(
             prompt="Q: where can we visit in the capital of France? A:",
             generate_config={"max_tokens": 1024, "stream": True},
         )