cmpv2

spki: implement `Hash` for `AlgorithmIdentifier` #1168

Job	Run time
build (1.75.0, thumbv7em-none-eabi)	28s
build (1.75.0, wasm32-unknown-unknown)	35s
minimal-versions	0s
build (stable, thumbv7em-none-eabi)	27s
test (1.75.0)	8m 4s
build (stable, wasm32-unknown-unknown)	23s
test (stable)	6m 57s
	16m 54s

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