sec1: migrate from `generic-array` to `hybrid-array` #1210

Job	Run time
build (1.70.0, thumbv7em-none-eabi)	27s
build (1.70.0, wasm32-unknown-unknown)	22s
test (1.70.0)	1m 4s
build (stable, thumbv7em-none-eabi)	21s
build (stable, wasm32-unknown-unknown)	22s
test (stable)	57s
minimal-versions / minimal-versions	56s
	4m 29s

Provide feedback