chore: fix clippy lints #259

Job	Run time
cargo check	38s
cargo fmt	11s
warnings	38s
cargo check (feature combinations)	18s
cargo check (+MSRV -Zminimal-versions) (stable)	28s
cargo test (stable on ubuntu-latest)	1m 7s
cargo test (beta on ubuntu-latest)	59s
cargo test (stable on windows-latest)	2m 39s
cargo test (stable on macos-latest)	1m 26s
build tests (wasm32-wasip1)	59s
cargo test (nightly on ubuntu-latest)	58s
cargo check (+MSRV -Zminimal-versions) (1.75.0)	34s
build tests (wasm32-unknown-unknown)	57s
all systems go!	0s
	11m 52s

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