deps: bump the cargo group across 1 directory with 3 updates

Bumps the cargo group with 3 updates in the / directory: [tokio](https://github.com/tokio-rs/tokio), [nix](https://github.com/nix-rust/nix) and [windows](https://github.com/microsoft/windows-rs).


Updates `tokio` from 1.37.0 to 1.38.0
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](tokio-rs/tokio@tokio-1.37.0...tokio-1.38.0)

Updates `nix` from 0.28.0 to 0.29.0
- [Changelog](https://github.com/nix-rust/nix/blob/master/CHANGELOG.md)
- [Commits](nix-rust/nix@v0.28.0...v0.29.0)

Updates `windows` from 0.56.0 to 0.57.0
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](microsoft/windows-rs@0.56.0...0.57.0)

---
updated-dependencies:
- dependency-name: tokio
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: cargo
- dependency-name: nix
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: cargo
- dependency-name: windows
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: cargo
...

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -19,18 +19,18 @@ rust-version = "1.75.0"
 [dependencies]
 futures = { version = "0.3.30", optional = true }
 indexmap = "2.2.6"
-tokio = { version = "1.37.0", features = ["io-util", "macros", "process", "rt"], optional = true }
+tokio = { version = "1.38.0", features = ["io-util", "macros", "process", "rt"], optional = true }
 tracing = { version = "0.1.40", optional = true }
 
 [target.'cfg(unix)'.dependencies]
-nix = { version = "0.28.0", default-features = false, features = ["fs", "poll", "signal"], optional = true }
+nix = { version = "0.29.0", default-features = false, features = ["fs", "poll", "signal"], optional = true }
 
 [target.'cfg(windows)'.dependencies]
-windows = { version = "0.56.0", optional = true }
+windows = { version = "0.57.0", optional = true }
 
 [dev-dependencies]
 remoteprocess = "0.4.13"
-tokio = { version = "1.37.0", features = ["io-util", "macros", "process", "rt", "rt-multi-thread", "time"] }
+tokio = { version = "1.38.0", features = ["io-util", "macros", "process", "rt", "rt-multi-thread", "time"] }
 
 [features]
 default = ["creation-flags", "job-object", "kill-on-drop", "process-group", "process-session", "tracing"]