Unsigned Rebuild for ZFS 2.2

This is an unsigned release (because my Dev Account expired and I don't want to renew it) for ZFS 2.2. This fixes issues with incorrect scrub feedback, but anything that requires elevated privileges via the helper will likely not work.

Manual signing and adjusting SMAuthorizedClients in https://github.com/cbreak-black/ZetaWatch/tree/master/ZetaAuthorizationHelper/Info.plist might work, but a Developer ID certificate might be required.