chore: bump nix from 0.19.0 to 0.20.0 (#17853)

* chore: bump nix from 0.19.0 to 0.20.0

Bumps [nix](https://github.com/nix-rust/nix) from 0.19.0 to 0.20.0.
- [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/v0.19.0...v0.20.0)

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

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

* [auto-commit] Update all Cargo lock files

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

sys-tuner/Cargo.toml

@@ -21,7 +21,7 @@ solana-version = { path = "../version", version = "=1.8.0" }
 [target."cfg(unix)".dependencies]
 unix_socket2 = "0.5.4"
 users = "0.10.0"
-nix = "0.19.0"
+nix = "0.20.0"
 sysctl = "0.4.1"
 
 [lib]