feat: support eslint flat config

[hyoban]

fix #244

Before this PR is merged, you can try it through ni -D @hyoban/vite-plugin-checker

[changeset-bot]

🦋 Changeset detected

Latest commit: b32c2e5

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
vite-plugin-checker	Patch

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[17359898647]

I used your bag. That didn't solve the problem

[hyoban]

@17359898647 You need to enable it via useFlatConfig option

[17359898647]

@17359898647 You need to enable it via useFlatConfig option

thanks

[zhoushengdong]

@hyoban Thank you, it worked!

[felixranesberger]

Thanks for the pull request 🎉
Is there any update on the merge status @fi3ework?

[fi3ework]

Could you update the docs for this field in docs/checkers/eslint.md and update changesets with a patch version (as we still haven't reach 1.0.0). Then we can go and merge it. Thanks!

[fi3ework]

Sorry for the delayed response due to a long period of burn out. Thanks for this great work again!