chore(community): update to OpenLLM 0.6 (#24609)

Update to OpenLLM 0.6, which we decides to make use of OpenLLM's
OpenAI-compatible endpoint. Thus, OpenLLM will now just become a thin
wrapper around OpenAI wrapper.

Signed-off-by: Aaron Pham <contact@aarnphm.xyz>

---------

Signed-off-by: Aaron Pham <contact@aarnphm.xyz>
Co-authored-by: ccurme <chester.curme@gmail.com>

libs/community/tests/integration_tests/llms/test_openllm.py

@@ -1,17 +1,13 @@
-"""Test OpenLLM wrapper."""
+"""Test OpenLLM API wrapper."""
+
+import pytest
 
 from langchain_community.llms.openllm import OpenLLM
 
 
-def test_openllm_llm_local() -> None:
-    llm = OpenLLM(model_name="flan-t5", model_id="google/flan-t5-small")
-    output = llm.invoke("Say foo:")
-    assert isinstance(output, str)
-
-
-def test_openllm_with_kwargs() -> None:
-    llm = OpenLLM(
-        model_name="flan-t5", model_id="google/flan-t5-small", temperature=0.84
-    )
-    output = llm.invoke("Say bar:")
+@pytest.mark.scheduled
+def test_openai_call() -> None:
+    """Test valid call to openai."""
+    llm = OpenLLM()
+    output = llm.invoke("Say something nice:")
     assert isinstance(output, str)