include eslint@9 in peerDependencies

[yuheiy]

v6.9.0 supports Flat Config, but an error occurs during installation because peerDependencies does not include eslint@9. This PR adds "^9" to peerDependencies.

[socket-security[bot]]

New and removed dependencies detected. Learn more about Socket for GitHub ↗︎

Package	New capabilities	Transitives	Size	Publisher
npm/eslint@9.5.0	environment Transitive: filesystem, unsafe	+13	4.37 MB	eslintbot

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.03%. Comparing base (882bd4d) to head (c257e65). Report is 9 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #994 +/- ## ======================================= Coverage 99.03% 99.03% ======================================= Files 107 107 Lines 1651 1651 Branches 581 581 ======================================= Hits 1635 1635 Misses 16 16 ```

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[ljharb]

That's not sufficient to support eslint 9; see #978. Please leave this PR open, since I'll now have to repurpose it when eslint 9 support is actually possible.

In the meantime, simply do not yet upgrade to eslint 9, until all of your plugins support it explicitly.

[andreyevyk]

With the publication of the version v6.9.0, is it now possible to include eslint@9 in peerDependencies?

[ljharb]

@andreyevyk nope, not yet, see #978.

[burtek]

@ljharb what about now?

[michaelfaith]

This is already covered by https://github.com/jsx-eslint/eslint-plugin-jsx-a11y/pull/1009

[burtek]

@michaelfaith true :facepalm: I think it's time for me to go to bed

[ljharb]

Indeed; obsoleted by #1009.