release: prepare 0.4.2 #1

Job	Run time
Verify tag matches Cargo.toml	6s
Build (aarch64-apple-darwin)	54s
Build (x86_64-unknown-linux-gnu)	36s
Build (x86_64-apple-darwin)	51s
Build (x86_64-pc-windows-msvc)	2m 25s
Build (aarch64-unknown-linux-gnu)	1m 4s
Create Release	8s
	6m 4s

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