build(deps): bump nix from 0.30.1 to 0.31.1

Bumps [nix](https://github.com/nix-rust/nix) from 0.30.1 to 0.31.1.
- [Changelog](https://github.com/nix-rust/nix/blob/master/CHANGELOG.md)
- [Commits](nix-rust/nix@v0.30.1...v0.31.1)

---
updated-dependencies:
- dependency-name: nix
  dependency-version: 0.31.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -14,7 +14,7 @@ argmax = "0.4.0"
 chrono = "0.4.43"
 clap = "4.5"
 faccess = "0.2.4"
-nix = { version = "0.30", features = ["fs", "user"] }
+nix = { version = "0.31", features = ["fs", "user"] }
 onig = { version = "6.5", default-features = false }
 regex = "1.12"
 uucore = { version = "0.5.0", features = ["entries", "fs", "fsext", "mode"] }
@@ -23,7 +23,7 @@ walkdir = "2.5"
 [dev-dependencies]
 assert_cmd = "2"
 filetime = "0.2"
-nix = { version = "0.30", features = ["fs"] }
+nix = { version = "0.31", features = ["fs"] }
 predicates = "3"
 pretty_assertions = "1.4.1"
 serial_test = "3.3"