std.os.linux.io_uring: fix compilation errors

Commit f0c42fbba15a31113dc989ab65c054047423afa3 was created before the
additional compile error for var used instead of const.
a5934edd48Andrew Kelley committed on 1/15/2024, 2:20:41 AMparentf0c42fb
1 file changedLine totals unavailable