test: use unique path for socket
test: use unique path for socket

Do not collide if multiple tests are running at once.

Signed-off-by: Dylan Yudaken <203ae8bb785c49229d9d2ff72bddc0c8f3aba6ea@fb.com>
Link: https://lore.kernel.org/r/20220422160132.2891927-3-203ae8bb785c49229d9d2ff72bddc0c8f3aba6ea@fb.com
Signed-off-by: Jens Axboe <cd8c6775e60d6f67a6984377324e5290df3d5358@kernel.dk>

axboe/liburing,axboe/liburing,axboe/liburing