On FreeBSD, the maximum waiters should be Cs INT_MAX instead of the maximum of a u32. Waiting for the Io.Event in the broadcast test triggers this bug.

Resolves #30715

Co-authored-by: Simon Galli <hubi@hubidubi.net>
Reviewed-on: https://codeberg.org/ziglang/zig/pulls/30094
Reviewed-by: Andrew Kelley <andrew@ziglang.org>
Co-authored-by: hubidubi <hubidubi@noreply.codeberg.org>
Co-committed-by: hubidubi <hubidubi@noreply.codeberg.org>