fix: apply ruff formatting to openai converter files

Files introduced in #288 were not formatted, causing lint failures on all open PRs.

Author: tejaskash

src/bedrock_agentcore/memory/integrations/strands/converters/openai.py

@@ -138,9 +138,7 @@ def message_to_payload(session_message: SessionMessage) -> list[Tuple[str, str]]
             return []
 
         has_non_empty = any(
-            (isinstance(item.get("text"), str) and item["text"].strip())
-            or "toolUse" in item
-            or "toolResult" in item
+            (isinstance(item.get("text"), str) and item["text"].strip()) or "toolUse" in item or "toolResult" in item
             for item in content
         )
         if not has_non_empty:

tests/bedrock_agentcore/memory/integrations/strands/test_agentcore_memory_session_manager_openai_converter.py

@@ -1,4 +1,5 @@
 """Session manager tests with OpenAI converter."""
+
 from unittest.mock import Mock, patch
 
 from strands.types.session import Session, SessionMessage, SessionType