fix MacOS build, switch external RWH to 0.6

leaving blade-internal RWH as 0.5 until this is fixed:
https://github.com/ash-rs/ash/issues/864
cf71fe8bf1Dzmitry Malyshau committed on 2/4/2024, 7:50:44 AMparentd0a0ce1
5 files changedLine totals unavailable