Bump `password-hash` to v0.6.0-pre (#1461) #1740

Job	Run time
minimal-versions	30s
build (1.60.0, thumbv7em-none-eabi)	1m 39s
build (1.60.0, wasm32-unknown-unknown)	1m 39s
build (stable, thumbv7em-none-eabi)	15s
build (stable, wasm32-unknown-unknown)	19s
test (1.60.0)	1m 50s
test (stable)	19s
	6m 31s

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