Bump `cipher` to v0.5.0-pre.2 #557

Job	Run time
build (1.65.0, thumbv7em-none-eabi)	1m 51s
build (1.65.0, wasm32-unknown-unknown)	1m 57s
build (stable, thumbv7em-none-eabi)	18s
build (stable, wasm32-unknown-unknown)	15s
test (1.65.0)	1m 49s
test (stable)	11s
minimal-versions / minimal-versions	25s
	6m 46s

Provide feedback