JS files are not ignored properly

[Dimava]

Describe the bug

ESLint still says

  0:0  error  Parsing error: ESLint was configured to run on `<tsconfigRootDir>/eslint.config.js`
              using `parserOptions.project`: <tsconfigRootDir>/tsconfig.json

JS files will error if they have 'project' field no matter if there are ts-aware rules or not as I understand

Reproduction

https://github.com/Dimava/antfu-eslint-config/tree/repro/1 (a clean project basically)

System Info

version 2.6.1 (latest)

Used Package Manager

pnpm

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