chore(deps): update rust crate nix to 0.31 #1694

Job	Run time
Code Coverage (windows-latest, windows)	4m 50s
cargo fmt --all -- --check	25s
Code Coverage (macos-latest, macos)	3m 7s
cargo check (macOS-latest)	57s
Code Coverage (ubuntu-latest, unix)	2m 38s
cargo test (macOS-latest)	1m 17s
cargo check (windows-latest)	2m 40s
cargo clippy -- -D warnings (ubuntu-latest)	1m 21s
cargo check (ubuntu-latest)	1m 36s
cargo clippy -- -D warnings (macOS-latest)	34s
cargo test (ubuntu-latest)	1m 4s
cargo clippy -- -D warnings (windows-latest)	2m 2s
cargo test (windows-latest)	2m 28s
	24m 59s

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