github bot: Upgrade clang version to 16
github bot: Upgrade clang version to 16

clang-16 is now available, use it.

Signed-off-by: Ammar Faizi <a8266392a329a5c7b5ab982a8996391d75b6438e@gnuweeb.org>
Link: 79616eca48ac5de497c40932d67f91ecfa7c8849@intel.com
Signed-off-by: Jens Axboe <cd8c6775e60d6f67a6984377324e5290df3d5358@kernel.dk>

axboe/liburing,axboe/liburing,axboe/liburing