Metrics files are not dumped if enabling "service-metric-collect" when using benchmark.py

[joshuayao]

stresscli.py requires service-list if set service-metric-collect=true in profile yaml to collect and dump metrics. But benchmark.py does not provide an approach to provide 'service-list' (see below).

def create_run_yaml_content(service_name, base_url, bench_target, concurrency, user_queries, test_suite_config):
    """Create content for the run.yaml file."""
    return {
        "profile": {
            "storage": {"hostpath": test_suite_config["test_output_dir"]},
            "global-settings": {
                "tool": "locust",
                "locustfile": os.path.join(os.getcwd(), "stresscli/locust/aistress.py"),
                "host": base_url,
                "stop-timeout": 120,
                "processes": 2,
                "namespace": "default",
                "bench-target": bench_target,
                "run-time": test_suite_config["run_time"],
                "service-metric-collect": test_suite_config["collect_service_metric"],
                "llm-model": test_suite_config["llm_model"],
                "deployment-type": test_suite_config["deployment_type"],
            },
            "runs": [{"name": "benchmark", "users": concurrency, "max-request": user_queries}],
        }
    }

[joshuayao]

Fixed by #105