chore: upgrade @eslint/js to v9.1.1

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Prerequisites checklist

• [X] I have read the contributing guidelines.

What is the purpose of this pull request? (put an "X" next to an item)

[ ] Documentation update [ ] Bug fix (template) [ ] New rule (template) [ ] Changes an existing rule (template) [ ] Add autofix to a rule [ ] Add a CLI option [ ] Add something to the core [X] Other, please explain:

Upgrades @eslint/js to v9.1.1.

What changes did you make? (Give an overview)

Updated package.json

Is there anything you'd like reviewers to focus on?

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