use a real LLM response and save it to data_rpc_test_data.txt#54

xianshijing-lk merged 2 commits intomainlivekit/client-sdk-cpp:mainfrom

sxian/BOT-215/improve_rpc_stress_testlivekit/client-sdk-cpp:sxian/BOT-215/improve_rpc_stress_testCopy head branch name to clipboard