op-deployer should disable gov token by default

[tessr]

We don't want chains launching with the gov token set. On OP Mainnet, this is the OP token contract, but other chains can make their own tokens by deploying their own (normal) token contracts. That way, we can reserve that address to be the OP token contract on every chain -- an important assumption for interop. We don't want address overlaps across the Superchain!

I think the solution here is to add

[globalDeployOverrides]
enableGovernance = false

to the default intents file generated by op-deployer.