Setting up a linter isn't work since ^9.0.0

[thiendaovotran]

Describe the bug

Following up the guide I have discovered that from version 9, there are few change in ESLint which will require to migration from .eslintrc.json to eslint.config.js.
Downgrade to version 8 (^.8.56.0) seem to be fine or perform migration on your own following the guide. But I think we should have the update on this.

Oops! Something went wrong! :(

ESLint: 9.6.0

ESLint couldn't find an eslint.config.(js|mjs|cjs) file.

From ESLint v9.0.0, the default configuration file is now eslint.config.js.
If you are using a .eslintrc.* file, please follow the migration guide
to update your configuration file to the new format:

https://eslint.org/docs/latest/use/configure/migration-guide

If you still have problems after following the migration guide, please stop by
https://eslint.org/chat/help to chat with the team.

To Reproduce

1. Go to Guide
2. Following up the guide until section Setting up a linter
3. Try to run npx eslint . for example
4. Got the error

Screenshots

No response

Device (please complete the following information)

• Eslint ^9.6.0
• Discord.js Guide v14 | Setting up a linter

Additional notes

No response

[imnaiyar]

There's already a pr for this #1557