Update `krates` dependency to 0.16.4. (#244) #636

Job	Run time
Build aarch64-apple-darwin	1m 50s
cargo-deny	21s
Build the book	10s
cargo-about	2m 26s
Lint	42s
Minimum Stable Rust Version Check	1m 8s
Publish Check (aarch64-unknown-linux-musl)	1m 43s
Release	0s
Test (ubuntu-22.04)	2m 4s
Test (macos-13-xl)	1m 58s
Test (windows-2022)	4m 30s
Publish Docs	5s
	16m 57s

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