Bump `digest` dependency to v0.11.0-pre.4 #891

Job	Run time
minimal-versions / minimal-versions	34s
set-msrv / set-msrv	2s
test (1.71.0)	27s
build (1.71.0, thumbv7em-none-eabi)	27s
test (stable)	29s
build (1.71.0, wasm32-unknown-unknown)	24s
build (stable, thumbv7em-none-eabi)	17s
build (stable, wasm32-unknown-unknown)	24s
	3m 4s

Provide feedback