Update NetChef devnet.json generator to match current schema

[teddyknox]

Bug Description

Devnet SDK has been updated recently such that the schema of the devnet env files produced by NetChef has fallen out of date (the kurtosis-devnet generation logic has been kept up to date). These env files are used for running acceptance tests against these networks.

This ticket encapsulates two subtasks:

1. Update the logic in NetChef to generate devnet.json files in the current schema accepted by devnet-sdk. That logic is located in optimism/infrastructure-services/netchef/pkg/devnet_env.go. (this ticket)

2. Add a CI-integrated test suite for this functionality in the optimism monorepo, such that if the devnet.json schema is changed in the future it will automatically trigger a failing test, indicating that the author should first update NetChef client (Keep devnet env producers and consumers in sync optimism#15358)

[teddyknox]

Closing in favor of using ethereum-optimism/optimism#15358 to track.