Bump nix from 0.23.0 to 0.23.1 (#922)

Bumps [nix](https://github.com/nix-rust/nix) from 0.23.0 to 0.23.1.
- [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/v0.23.0...v0.23.1)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.lock

@@ -343,9 +343,9 @@ dependencies = [
 
 [[package]]
 name = "nix"
-version = "0.23.0"
+version = "0.23.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f305c2c2e4c39a82f7bf0bf65fb557f9070ce06781d4f2454295cc34b1c43188"
+checksum = "9f866317acbd3a240710c63f065ffb1e4fd466259045ccb504130b7f668f35c6"
 dependencies = [
  "bitflags",
  "cc",

Cargo.toml

@@ -57,7 +57,7 @@ features = ["suggestions", "color", "wrap_help"]
 
 [target.'cfg(unix)'.dependencies]
 users = "0.11.0"
-nix = "0.23.0"
+nix = "0.23.1"
 
 [target.'cfg(all(unix, not(target_os = "redox")))'.dependencies]
 libc = "0.2"