Support devchain with L2 already transitioned

[martinvol]

Currently the devchain is created with latest contracts in the commit it is built. The devtooling team ready wants to start working on celi/contractkit changes that require an L2 enabled.

It could be acheived by, after the job that builds L1 (current one) finishes, applying a second set of migrations that:

1. import the state into a new anvil version.
2. Sets the bytecode of proxyAdminAddress (0x4200000000000000000000000000000000000018) (this enables the transition)
3. Calls functions to fully enable the contract (for example CeloDistributionSchedule.activate(...))
4. Exports a new state that it's L2.

[arthurgousset]

Extra context from Slack

[arthurgousset]

Starting to work on this today.

[arthurgousset]

Marked the PR ready for review:

• feat(foundry): publish L2 state in @celo/devchain-anvil #11107

[arthurgousset]

This done in:

• feat(foundry): publish L2 state in @celo/devchain-anvil #11107

[arthurgousset]

Follow-on task here:

• Replace L2 migration bash script with a Foundry script #11139