ml-kem: bump `hybrid-array` to v0.2 #88

Job	Run time
minimal-versions	0s
set-msrv / set-msrv	2s
cross (powerpc-unknown-linux-gnu, 1.74.0)	43s
no_std (1.74.0, thumbv7em-none-eabi)	15s
test (1.74.0)	20s
cross (powerpc-unknown-linux-gnu, stable)	44s
no_std (1.74.0, wasm32-unknown-unknown)	14s
test (stable)	2m 28s
no_std (stable, thumbv7em-none-eabi)	14s
no_std (stable, wasm32-unknown-unknown)	16s
	5m 16s

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