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/tests/integration_tests/llms/test_friendli.py

@@ -13,12 +13,6 @@ def friendli_llm() -> Friendli:
     return Friendli(temperature=0, max_tokens=10)
 
 
-def test_friendli_call(friendli_llm: Friendli) -> None:
-    """Test call."""
-    output = friendli_llm("Say hello world.")
-    assert isinstance(output, str)
-
-
 def test_friendli_invoke(friendli_llm: Friendli) -> None:
     """Test invoke."""
     output = friendli_llm.invoke("Say hello world.")