Guest for ZisK r8

Release notes This is a public preview of the Nethermind guest for ZisK. Requires ZisK v1.0.0-alpha Supports standard chains and glamsterdam-devnet-7 Build signature The package is signed with the following OpenPGP key: AD12 7976 5093 C675 9CD8 A400 24A7 7461 6F1E 617E