Increase timeout for poll_oneoff tests

This increases the timeout from 50ms to 200ms, which makes the
tests reliably pass on my machine using the CI scripts againt
the s390x-linux-user qemu target.

crates/test-programs/wasi-tests/src/bin/poll_oneoff_stdio.rs

@@ -2,7 +2,7 @@ use std::collections::HashMap;
 use std::mem::MaybeUninit;
 use wasi_tests::{assert_errno, STDERR_FD, STDIN_FD, STDOUT_FD};
 
-const TIMEOUT: u64 = 50_000_000u64; // 50 milliseconds, required to satisfy slow execution in CI
+const TIMEOUT: u64 = 200_000_000u64; // 200 milliseconds, required to satisfy slow execution in CI
 const CLOCK_ID: wasi::Userdata = 0x0123_45678;
 const STDIN_ID: wasi::Userdata = 0x8765_43210;
 

crates/wasi-common/tokio/tests/poll_oneoff.rs

@@ -8,7 +8,7 @@ use wasi_common::{
 };
 use wasi_tokio::{clocks_ctx, sched::poll_oneoff, Dir};
 
-const TIMEOUT: Duration = Duration::from_millis(50); // Required for slow execution in CI
+const TIMEOUT: Duration = Duration::from_millis(200); // Required for slow execution in CI
 
 #[tokio::test(flavor = "multi_thread")]
 async fn empty_file_readable() -> Result<(), Error> {