Contracts are not verified on some block explorers

[bbenligiray]

• core (missing solidity 0.8.27 support)
• core-testnet (missing solidity 0.8.27 support)
• kava (missing solidity 0.8.27 support)
• kava-testnet
• zircuit

[bbenligiray]

@hiletmis should we just keep the list of chains without block explorer verification here? Otherwise it's too difficult to keep up to date.

[hiletmis]

@bbenligiray will go over them again as they -may- start support desired solidity version or block explorer verification.

I will update the list accordingly