chore(deps): update nix requirement from 0.28.0 to 0.29.0

Updates the requirements on [nix](https://github.com/nix-rust/nix) to permit the latest version.
- [Changelog](https://github.com/nix-rust/nix/blob/master/CHANGELOG.md)
- [Commits](nix-rust/nix@v0.28.0...v0.29.0)

---
updated-dependencies:
- dependency-name: nix
  dependency-type: direct:production
...

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

datafusion/core/Cargo.toml

@@ -155,7 +155,7 @@ tokio = { workspace = true, features = ["rt-multi-thread", "parking_lot", "fs"]
 tokio-postgres = "0.7.7"
 
 [target.'cfg(not(target_os = "windows"))'.dev-dependencies]
-nix = { version = "0.28.0", features = ["fs"] }
+nix = { version = "0.29.0", features = ["fs"] }
 
 [[bench]]
 harness = false