Update windows-sys requirement from 0.60 to 0.61 (#243)

Updates the requirements on [windows-sys](https://github.com/microsoft/windows-rs) to permit the latest version.
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](microsoft/windows-rs@0.60.0...0.61.0)

---
updated-dependencies:
- dependency-name: windows-sys
  dependency-version: 0.61.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Taiki Endo <te316e89@gmail.com>

Author: dependabot[bot]

Cargo.toml

@@ -6,7 +6,7 @@ name = "async-io"
 version = "2.5.0"
 authors = ["Stjepan Glavina <stjepang@gmail.com>"]
 edition = "2021"
-rust-version = "1.70"
+rust-version = "1.71"
 description = "Async I/O and timers"
 license = "Apache-2.0 OR MIT"
 repository = "https://github.com/smol-rs/async-io"
@@ -37,7 +37,7 @@ slab = "0.4.2"
 tracing = { version = "0.1.37", default-features = false, optional = true }
 
 [target.'cfg(windows)'.dependencies]
-windows-sys = { version = "0.60.0", features = ["Win32_Foundation"] }
+windows-sys = { version = "0.61", features = ["Win32_Foundation"] }
 
 [build-dependencies]
 autocfg = "1"

src/lib.rs

@@ -1252,7 +1252,7 @@ unsafe impl IoSafe for std::process::ChildStderr {}
 #[cfg(unix)]
 unsafe impl IoSafe for std::os::unix::net::UnixStream {}
 
-// PipeReader & PipeWriter require std >= 1.87, our MSRV is 1.70, hence
+// PipeReader & PipeWriter require std >= 1.87, our MSRV is 1.71, hence
 // conditional on cfg()s, generated from build.rs
 #[cfg(not(async_io_no_pipe))]
 unsafe impl IoSafe for std::io::PipeReader {}