flaky AV1 decode tests with fence timeout

[dabrain34]

Some AV1 tests are exiting with error having some fence timeout issue:

• decode_av1_basic_8bit
• decode_av1_globalmotion_8bit

STDERR:
     [libdav1d @ 0x57da08121500] libdav1d 1.4.1
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 100 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 200 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 300 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 400 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 500 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 600 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 700 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 800 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 900 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 1000 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 1100 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 1200 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 1300 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 1400 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 1500 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 1600 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 1700 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 1800 mSec with result 0x2 ****
         **** WARNING: fence  frameCompleteFence(96593975867184) is not done after 1900 mSec with result 0x2 ****

The bug happens with nvidia driver: 570.123.19