zeroize: add `zeroize_stack` function (#1331) #1542

Job	Run time
build-only	20s
windows (x86_64-pc-windows-gnu, stable)	37s
macos (1.85.0)	40s
cross (aarch64-unknown-linux-gnu, 1.85.0)	40s
cross (aarch64-unknown-linux-gnu, stable)	32s
linux (x86_64-unknown-linux-gnu, 1.85.0)	13s
linux (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	24s
linux (i686-unknown-linux-gnu, 1.85.0, sudo apt update && sudo apt install gcc-multilib)	31s
linux (x86_64-unknown-linux-gnu, stable)	16s
macos (stable)	17s
windows (x86_64-pc-windows-gnu, 1.85.0)	36s
minimal-versions / minimal-versions	28s
	5m 34s

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