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Add zeroize support (#545) #959

Job	Run time
cross (1.72.0, aarch64-unknown-linux-gnu, default)	44s
cross (1.72.0, powerpc-unknown-linux-gnu, default)	47s
cross (stable, aarch64-unknown-linux-gnu, default)	41s
cross (stable, powerpc-unknown-linux-gnu, default)	40s
minimal-versions / minimal-versions	51s
set-msrv / set-msrv	2s
linux (x86_64-unknown-linux-gnu, 1.72.0)	43s
windows (x86_64-pc-windows-gnu, 1.72.0)	1m 1s
windows (x86_64-pc-windows-gnu, stable)	2m 10s
linux (x86_64-unknown-linux-gnu, stable)	36s
build (1.72.0, thumbv7em-none-eabi)	26s
macos (1.72.0)	41s
build (1.72.0, wasm32-unknown-unknown)	30s
macos (stable)	1m 4s
build (1.72.0, loongarch64-unknown-linux-gnu)	24s
build (stable, thumbv7em-none-eabi)	25s
build (stable, wasm32-unknown-unknown)	17s
build (stable, loongarch64-unknown-linux-gnu)	15s
	12m 17s

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