CMS `EnvelopedData` #971

Job	Run time
build (1.65.0, thumbv7em-none-eabi)	1m 33s
build (1.65.0, wasm32-unknown-unknown)	1m 45s
build (stable, thumbv7em-none-eabi)	26s
build (stable, wasm32-unknown-unknown)	17s
test (1.65.0)	2m 46s
test (stable)	1m 37s
minimal-versions / minimal-versions	2m 55s
	11m 19s

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