* feat: Rename Upgrade.s.sol to ForkProd.s.sol

The updated name is more descriptive of what the code currently does. It
also reflects more accurately the current plan of applying the upgrade
outside of this script in a separate one, which may be named
`Upgrade.s.sol` and  will call `OPCM.upgrade()`.

* feat: fix artifcat name

* feat: ForkLive instead of ForkProd