chore(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

@@ -32,7 +32,7 @@ alsa = "0.11.0"
 libc = "0.2.180"
 libspa = { version = "0.8.0", optional = true }
 libspa-sys = { version = "0.8.0", optional = true }
-nix = "0.30.1"
+nix = "0.31.1"
 pipewire = { version = "0.8.0", optional = true, features = ["v0_3_45"] }
 
 [target.'cfg(any(target_os = "macos", target_os = "ios"))'.dependencies]