Bump `digest` to v0.11.0-pre.9 #900

Job	Run time
minimal-versions / minimal-versions	45s
set-msrv / set-msrv	4s
test (1.72.0)	49s
build (1.72.0, thumbv7em-none-eabi)	20s
test (stable)	45s
build (1.72.0, wasm32-unknown-unknown)	22s
build (1.72.0, loongarch64-unknown-linux-gnu)	34s
build (stable, thumbv7em-none-eabi)	23s
build (stable, wasm32-unknown-unknown)	17s
build (stable, loongarch64-unknown-linux-gnu)	19s
	4m 38s

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