chore: update to 2024 edition and fix clippy lints #1957

Job	Run time
Cross checking x86_64-pc-windows-msvc on stable	45s
Cross checking x86_64-pc-windows-gnu on stable	49s
Cross checking x86_64-apple-darwin on stable	52s
Cross checking aarch64-apple-darwin on stable	53s
Cross checking x86_64-unknown-linux-gnu on stable	39s
Cross checking x86_64-unknown-linux-musl on stable	39s
Cross checking aarch64-unknown-linux-gnu on stable	40s
Cross checking aarch64-unknown-linux-musl on stable	39s
Cross checking i686-unknown-linux-gnu on stable	40s
Cross checking x86_64-unknown-netbsd on stable	39s
Cross checking armv7-unknown-linux-gnueabihf on stable	40s
Result (Cross-CI)	1s
	7m 56s

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