message: Add retry test
diff: @@ -441,7 +441,7 @@ fn main() -> Res<()> {
  if args.qns_mode {
  match env::var("TESTCASE") {
  Ok(s) if s == "http3" => {}
  - Ok(s) if s == "handshake" || s == "transfer" => {
  + Ok(s) if s == "handshake" || s == "transfer" || s == "retry" => {
  args.use_old_http = true;
  }
  Ok(s) if s == "multiconnect" => {
  