[BugFix][Qwen3-Omni]Fixed the issue of incorrect answers for single words. (#2239)

Signed-off-by: amy-why-3459 <wuhaiyan17@huawei.com>

vllm_omni/benchmarks/patch/patch.py

@@ -376,9 +376,8 @@ async def benchmark(
         limit_per_host=max_concurrency or 0,
         ttl_dns_cache=300,
         use_dns_cache=True,
-        keepalive_timeout=60,
         enable_cleanup_closed=True,
-        force_close=False,
+        force_close=True,
         ssl=ssl_setting,
     )