fix: compaction typo (#35467)

_This PR applies 2/2 suggestions from code quality [AI
findings](https://github.com/langchain-ai/langchain/security/quality/ai-findings)._

---------

Co-authored-by: Copilot Autofix powered by AI <223894421+github-code-quality[bot]@users.noreply.github.com>

Author: jkennedyvz

libs/partners/openai/tests/integration_tests/chat_models/test_responses_api.py

@@ -1114,7 +1114,7 @@ def execute_code(code: str) -> str:
 @pytest.mark.vcr
 @pytest.mark.parametrize("output_version", ["responses/v1", "v1"])
 def test_compaction(output_version: Literal["responses/v1", "v1"]) -> None:
-    """Test the compation beta feature."""
+    """Test the compaction beta feature."""
     llm = ChatOpenAI(
         model="gpt-5.2",
         context_management=[{"type": "compaction", "compact_threshold": 10_000}],
@@ -1160,7 +1160,7 @@ def test_compaction(output_version: Literal["responses/v1", "v1"]) -> None:
 @pytest.mark.vcr
 @pytest.mark.parametrize("output_version", ["responses/v1", "v1"])
 def test_compaction_streaming(output_version: Literal["responses/v1", "v1"]) -> None:
-    """Test the compation beta feature."""
+    """Test the compaction beta feature."""
     llm = ChatOpenAI(
         model="gpt-5.2",
         context_management=[{"type": "compaction", "compact_threshold": 10_000}],