Bump `hybrid-array` to v0.2.0-pre.8 (#1438) #2184

Job	Run time
build (1.60.0, thumbv7em-none-eabi)	1m 26s
derive (1.60.0)	1m 20s
build (1.60.0, wasm32-unknown-unknown)	1m 24s
derive (stable)	19s
build (stable, thumbv7em-none-eabi)	21s
build (stable, wasm32-unknown-unknown)	22s
doc	25s
test (1.60.0)	1m 40s
test (stable)	20s
minimal-versions / minimal-versions	23s
	8m 0s

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