Bump `digest` dependency to v0.11.0-pre.7 #830

Job	Run time
minimal-versions / minimal-versions	38s
set-msrv / set-msrv	4s
build (1.72.0, thumbv7em-none-eabi)	23s
build (1.72.0, wasm32-unknown-unknown)	25s
build (1.72.0, loongarch64-unknown-linux-gnu)	27s
build (stable, thumbv7em-none-eabi)	13s
build (stable, wasm32-unknown-unknown)	17s
test (1.72.0)	35s
build (stable, loongarch64-unknown-linux-gnu)	20s
test (stable)	37s
	3m 59s

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