Nitro espresso upgrade follow up

[sveitser]

Currently we enable the espresso integration via the chain config

nitro-espresso-integration/arbos/arbosState/arbosstate.go

Lines 330 to 332 in 8df6661

	case 35:
	// Espresso marketplace compatible ArbOS version.
	chainConfig.ArbitrumChainParams.EnableEspresso = true

If we imagine that our integration code at some point ends up in upstream nitro it should be possible to upgrade to an arbos version that supports the integration without actually using it. So I think it would be more appropriate to turn on the espresso integration via a call to the setChainConfig pre-compile instead of enabling it directly when performing the ArbOS upgrade (as we do now).