dbl

Migrate to `hybrid-array`; MSRV 1.65 #1492

Job	Run time
build (1.65.0, thumbv7em-none-eabi)	4m 8s
build (1.65.0, wasm32-unknown-unknown)	5m 9s
build (stable, thumbv7em-none-eabi)	15s
test (1.65.0)	4m 10s
build (stable, wasm32-unknown-unknown)	10s
test (stable)	10s
minimal-versions / minimal-versions	39s
	14m 41s

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