Bump `cipher` to v0.5.0-pre.1; MSRV 1.65 #111

Job	Run time
build (1.65.0, thumbv7em-none-eabi)	1m 36s
build (1.65.0, wasm32-unknown-unknown)	1m 37s
build (stable, thumbv7em-none-eabi)	14s
build (stable, wasm32-unknown-unknown)	20s
test (1.65.0)	1m 41s
test (stable)	18s
minimal-versions / minimal-versions	30s
	6m 16s

Provide feedback