Tweak gunicorn

Author: anuraaga

conformance/test/server.py

@@ -489,7 +489,7 @@ async def serve_gunicorn(
     cafile: str | None,
     port_future: asyncio.Future[int],
 ):
-    args = ["--bind=127.0.0.1:0", "--workers=8"]
+    args = ["--bind=127.0.0.1:0", "--threads=40", "--reuse-port"]
     if certfile:
         args.append(f"--certfile={certfile}")
     if keyfile: