k12

Bump `digest` to v0.11.0-pre.3; MSRV 1.71 #854

Job	Run time
minimal-versions / minimal-versions	32s
set-msrv / set-msrv	4s
test (1.65.0)	1m 39s
build (1.65.0, thumbv7em-none-eabi)	1m 30s
test (stable)	27s
build (1.65.0, wasm32-unknown-unknown)	1m 29s
build (stable, thumbv7em-none-eabi)	17s
build (stable, wasm32-unknown-unknown)	24s
	6m 22s

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