Bump `hybrid-array` to v0.2.0-pre.6 #2164

Job	Run time
derive (1.60.0)	1m 27s
build (1.60.0, thumbv7em-none-eabi)	1m 26s
derive (stable)	15s
doc	27s
build (1.60.0, wasm32-unknown-unknown)	1m 22s
test (1.60.0)	1m 30s
build (stable, thumbv7em-none-eabi)	19s
build (stable, wasm32-unknown-unknown)	24s
test (stable)	20s
minimal-versions / minimal-versions	34s
	8m 4s

Provide feedback