kem

crypto-common: migrate to `hybrid-array`; MSRV 1.65 #745

Job	Run time
build (1.61.0, thumbv7em-none-eabi)	4m 51s
test (1.61.0)	5m 31s
build (1.61.0, wasm32-unknown-unknown)	5m 24s
test (stable)	53s
build (stable, thumbv7em-none-eabi)	14s
build (stable, wasm32-unknown-unknown)	13s
test-msrv	5m 13s
	22m 19s

Provide feedback