.github/workflows: Run the nolibc build for x86 32-bit
.github/workflows: Run the nolibc build for x86 32-bit

Since commit:

  b7d8dd8bbf5b ("arch/x86/syscall: Add x86 32-bit native syscall support")

liburing supports nolibc build for x86 32-bit. Run the nolibc build for
this arch on the GitHub bot too.

Currently, liburing nolibc is only available for:
 - x86-64.
 - x86 (32-bit).

Signed-off-by: Ammar Faizi <a8266392a329a5c7b5ab982a8996391d75b6438e@gnuweeb.org>
Signed-off-by: Jens Axboe <cd8c6775e60d6f67a6984377324e5290df3d5358@kernel.dk>

axboe/liburing,axboe/liburing,axboe/liburing