sec1: migrate from `generic-array` to `hybrid-array` (#1298) #475

Job	Run time
build (1.65.0, thumbv7em-none-eabi)	1m 45s
test (1.65.0)	1m 50s
build (1.65.0, wasm32-unknown-unknown)	1m 44s
test (stable)	23s
build (stable, thumbv7em-none-eabi)	22s
build (stable, wasm32-unknown-unknown)	28s
minimal-versions / minimal-versions	32s
	7m 4s

Provide feedback