Bump nix from 0.29.0 to 0.31.3 (#113)

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

Author: dependabot[bot]

Cargo.lock

@@ -27,7 +27,7 @@ serde_yaml = "0.9"
 # System info for environment verification
 sysinfo = "0.33"
 num_cpus = "1.16"
-nix = { version = "0.29", features = ["fs"] }
+nix = { version = "0.31", features = ["fs"] }
 hostname = "0.4"
 
 # Async runtime