test(anthropic): add vcr to test_search_result_tool_message (#33793)

To fix nondeterministic results causing integration testing to sometimes
fail

Also speeds up from 10s to 0.5

---------

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

libs/partners/anthropic/tests/integration_tests/test_chat_models.py

@@ -1700,6 +1700,7 @@ def test_files_api_pdf(block_format: str) -> None:
     _ = llm.invoke([input_message])
 
 
+@pytest.mark.vcr
 def test_search_result_tool_message() -> None:
     """Test that we can pass a search result tool message to the model."""
     llm = ChatAnthropic(