Migrate to `hybrid-array`; MSRV 1.65 #238

Job	Run time
build (1.65.0, armv7a-none-eabi)	3m 45s
test (1.65.0)	3m 41s
test (stable)	17s
build (1.65.0, thumbv7em-none-eabi)	3m 43s
build (1.65.0, wasm32-unknown-unknown)	3m 37s
build (stable, armv7a-none-eabi)	19s
build (stable, thumbv7em-none-eabi)	19s
build (stable, wasm32-unknown-unknown)	23s
minimal-versions / minimal-versions	23s
	16m 27s

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