Support "Flat Config" (ESLint 9)

[JoshuaKGoldberg]

👋 Coming over from eslint/eslint#18093: ESLint is migrating to a new "flat config" format that will be the default in ESLint v9.

It doesn't look like eslint-plugin-eslint-comments has support yet. I'm posting this issue here as a reference & cross-linking it to the table in eslint/eslint#18093. If there's anything technical blocking the extension from supporting flat configs, please let us know - we'd be happy to try to help! 💜

Additional resources:

• Configuration Migration Guide
• (edit) Plugin Migration Guide
• Blog posts on the new config system: Part 1: Background, Part 2: Introduction to flat config

[github-actions]

🎉 This issue has been resolved in version 4.3.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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