[openssl/openssl] ad4af6: Fix timeouts in the quic_multistream test script 13

[Matt Caswell]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: ad4af6dfca8344516bb658b1745a530635af9433
      https://github.com/openssl/openssl/commit/ad4af6dfca8344516bb658b1745a530635af9433
  Author: Matt Caswell <matt at openssl.org>
  Date:   2023-10-02 (Mon, 02 Oct 2023)

  Changed paths:
    M test/quic_multistream_test.c

  Log Message:
  -----------
  Fix timeouts in the quic_multistream test script 13

Script 13 is a stress test which can timeout on some low powered platforms
or with some options that significantly slow performance.

We increase the timeout.

Reviewed-by: Paul Dale <pauli at openssl.org>
Reviewed-by: Richard Levitte <levitte at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22214)