Bump `hybrid-array` to v0.4 #84

Job	Run time
benches	26s
build (stable, thumbv7em-none-eabi)	20s
build (1.85.0, thumbv7em-none-eabi)	20s
build (1.85.0, wasm32-unknown-unknown)	1m 14s
build (stable, wasm32-unknown-unknown)	1m 14s
build (stable, armv7a-none-eabi)	1m 14s
build (1.85.0, armv7a-none-eabi)	14s
test (i686-unknown-linux-gnu, 1.85.0, sudo apt update && sudo apt install gcc-multilib)	32s
test (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	36s
test (x86_64-unknown-linux-gnu, 1.85.0)	17s
test (x86_64-unknown-linux-gnu, stable)	5m 1s
	11m 28s

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