aead

aead: rework traits API #3763

Job	Run time
test (1.85.0)	20s
build (stable, wasm32-unknown-unknown)	23s
test (stable)	24s
build (stable, thumbv7em-none-eabi)	21s
build (1.85.0, wasm32-unknown-unknown)	21s
minimal-versions / minimal-versions	27s
build (1.85.0, thumbv7em-none-eabi)	18s
	2m 34s

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