chore(deps): update rust crate libc to v0.2.166 #321

Job	Run time
cargo fmt --all -- --check	4s
Code Coverage (ubuntu-latest, unix)	1m 42s
cargo clippy -- -D warnings (ubuntu-latest)	17s
cargo check (ubuntu-latest)	10s
Code Coverage (macos-latest, macos)	1m 43s
cargo test (ubuntu-latest)	17s
cargo clippy -- -D warnings (macOS-latest)	12s
cargo check (macOS-latest)	13s
Code Coverage (windows-latest, windows)	3m 34s
cargo check (windows-latest)	1m 55s
cargo test (macOS-latest)	23s
cargo clippy -- -D warnings (windows-latest)	2m 22s
cargo test (windows-latest)	1m 23s
	14m 15s

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