Bump `digest` to v0.11.0-pre.3; MSRV 1.71 #183

Job	Run time
minimal-versions / minimal-versions	33s
set-msrv / set-msrv	4s
test (1.71.0)	28s
build (1.71.0, thumbv7em-none-eabi)	26s
test (stable)	41s
build (1.71.0, wasm32-unknown-unknown)	28s
build (stable, thumbv7em-none-eabi)	32s
build (stable, wasm32-unknown-unknown)	17s
	3m 29s

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