sm3

Bump `digest` dependency to v0.11.0-pre.7 (#551) #581

Job	Run time
set-msrv / set-msrv	9s
minimal-versions / minimal-versions	24s
test (1.71.0)	27s
test (stable)	38s
build (1.71.0, thumbv7em-none-eabi)	20s
build (1.71.0, wasm32-unknown-unknown)	28s
build (stable, thumbv7em-none-eabi)	30s
build (stable, wasm32-unknown-unknown)	16s
	3m 12s

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