🚀 Feature: remove compat layer

[michaelfaith]

Feature Request Checklist

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Overview

This is the final step of our migration plan, getting us to Milestone 3, where all rules, configs, and plugins are exported directly and no longer being wrapped in eslint-json-compat-utils.

This change is to remove that compat layer and remove jsonc-eslint-parser as a dependency.

Additional Info

No response