Update WASI to cap-std 0.25 and windows-sys. (#4302)

This updates to rustix 0.35.6, and updates wasi-common to use cap-std 0.25 and
windows-sys (instead of winapi).

Changes include:

 - Better error code mappings on Windows.
 - Fixes undefined references to `utimensat` on Darwin.
 - Fixes undefined references to `preadv64` and `pwritev64` on Android.
 - Updates to io-lifetimes 0.7, which matches the io_safety API in Rust.
 - y2038 bug fixes for 32-bit platforms

crates/wasi-common/cap-std-sync/src/sched/unix.rs

@@ -46,7 +46,7 @@ pub async fn poll_oneoff<'a>(poll: &mut Poll<'a>) -> Result<(), Error> {
         );
         match rustix::io::poll(&mut pollfds, poll_timeout) {
             Ok(ready) => break ready,
-            Err(rustix::io::Error::INTR) => continue,
+            Err(rustix::io::Errno::INTR) => continue,
             Err(err) => return Err(err.into()),
         }
     };