Turbopack: Update notify-rs crate, remove workaround for fixed bug (#81909)
8.0.0 had a bug that was fixed in 8.1.0 that required a workaround for error codes: https://github.com/notify-rs/notify/issues/685
Tested on Linux with
```
rm -rf /tmp/fuzz && RUST_BACKTRACE=1 cargo run --release -p turbo-tasks-fuzz -- fs-watcher --fs-root /tmp/fuzz --directory-modifications 0
```