For OP Goerli, see https://github.com/ethereum-optimism/optimism/pull/8399

To reproduce:

```bash
forge script scripts/Deploy.s.sol:Deploy --rpc-url $ETH_RPC_URL --private-key $PRIVATE_KEY --sig 'deployOptimismPortal()' --broadcast --verify
SIG=deployOptimismPortal forge script scripts/Deploy.s.sol:Deploy --rpc-url $ETH_RPC_URL --private-key $PRIVATE_KEY --sig 'sync()'
```