Rename L1BlockIsthmus to L1BlockInterop for consistency with the upgrade naming.
The scope of it is only the Golang files, there will be another one with the changes on the Solidity files because that's how it was asked from reviewers.
Tests
I added no tests, but only modified the contracts name so they don' break
Description
Rename L1BlockIsthmus to L1BlockInterop for consistency with the upgrade naming. The scope of it is only the Golang files, there will be another one with the changes on the Solidity files because that's how it was asked from reviewers.
Tests
I added no tests, but only modified the contracts name so they don' break
Additional context
PR for the renaming on Soldity files: https://github.com/ethereum-optimism/optimism/pull/12132