feat(`anvil`): add `eth_config` RPC endpoint for Osaka hardfork

[zerosnacks]

Component

Anvil

Describe the feature you would like

Specification: https://eips.ethereum.org/EIPS/eip-7910

Reference in Reth: https://github.com/paradigmxyz/reth/pull/18071/files#diff-fafb33484dd6dedcb26f4129ebc4bb83fc369f21d0d742b50d32b4fcade02534

I think it makes sense for Anvil to adhere to this standard RPC method

Additional context

No response