Bump nix from 0.25.0 to 0.26.1

Bumps [nix](https://github.com/nix-rust/nix) from 0.25.0 to 0.26.1.
- [Release notes](https://github.com/nix-rust/nix/releases)
- [Changelog](https://github.com/nix-rust/nix/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nix-rust/nix/compare/v0.25.0...v0.26.1)

---
updated-dependencies:
- dependency-name: nix
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.toml

@@ -89,7 +89,7 @@ wait-timeout = "0.2.0"
 tempfile = "3.3.0"
 
 [target.'cfg(unix)'.dev-dependencies]
-nix = { version = "0.25.0", default-features = false, features = ["term"] }
+nix = { version = "0.26.1", default-features = false, features = ["term"] }
 
 [build-dependencies.clap]
 version = "4.0.2"