Bump `digest` dependency to v0.11.0-pre.4 #923

Job	Run time
cross (1.71.0, aarch64-unknown-linux-gnu, default)	47s
loongarch64_asm	22s
cross (1.71.0, powerpc-unknown-linux-gnu, default)	39s
cross (stable, aarch64-unknown-linux-gnu, default)	39s
cross (stable, powerpc-unknown-linux-gnu, default)	41s
minimal-versions / minimal-versions	1m 13s
set-msrv / set-msrv	4s
macos (1.71.0)	55s
windows (x86_64-pc-windows-gnu, 1.71.0)	1m 6s
build (1.71.0, thumbv7em-none-eabi)	25s
macos (stable)	45s
windows (x86_64-pc-windows-gnu, stable)	2m 0s
linux (x86_64-unknown-linux-gnu, 1.71.0)	1m 28s
build (1.71.0, wasm32-unknown-unknown)	22s
linux (x86_64-unknown-linux-gnu, stable)	1m 23s
build (stable, thumbv7em-none-eabi)	25s
build (stable, wasm32-unknown-unknown)	19s
	13m 33s

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