hybrid-array: Added serde impls for `Array` #1524

Job	Run time
build (1.65.0, thumbv7em-none-eabi)	4m 32s
test (1.65.0)	3m 8s
build (1.65.0, wasm32-unknown-unknown)	4m 32s
test (stable)	13s
build (stable, thumbv7em-none-eabi)	9s
build (stable, wasm32-unknown-unknown)	18s
	12m 52s

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