fix(deps): update rust crate nix to 0.31.1

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Cargo.lock

@@ -31,7 +31,7 @@ hickory-proto = { version = "0.25.2", features = ["tokio"] }
 hickory-client = "0.25.2"
 futures-util = { version = "0.3.31", default-features = false }
 tokio = { version = "1.49.0", features = ["macros", "rt-multi-thread", "net", "signal"] }
-nix = { version = "0.30.1", features = ["fs", "signal", "net"] }
+nix = { version = "0.31.1", features = ["fs", "signal", "net"] }
 libc = "0.2.180"
 arc-swap = "1.8.0"
 flume = "0.12.0"