Format main.py with Ruff

hopcroft_skill_classification_tool_competition/main.py

@@ -195,6 +195,7 @@ async def predict_skills(issue: IssueInput) -> PredictionRecord:
 
     except Exception as e:
         import traceback
+
         traceback.print_exc()
         raise HTTPException(
             status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,