Update dependency eslint to v9

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
eslint (source)	^8.56.0 -> ^9.1.1

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Release Notes

eslint/eslint (eslint)

### [`v9.1.1`](https://togithub.com/eslint/eslint/compare/v9.1.0...b4d2512809a1b28466ad1ce5af9d01c181b9bf9e) [Compare Source](https://togithub.com/eslint/eslint/compare/v9.1.0...v9.1.1) ### [`v9.1.0`](https://togithub.com/eslint/eslint/compare/v9.0.0...b78d831e244171c939279b03be519b5c13836fce) [Compare Source](https://togithub.com/eslint/eslint/compare/v9.0.0...v9.1.0) ### [`v9.0.0`](https://togithub.com/eslint/eslint/compare/v8.57.0...e0cbc50179adac1670f4e0bd9093387a51f4f42a) [Compare Source](https://togithub.com/eslint/eslint/compare/v8.57.0...v9.0.0) ### [`v8.57.0`](https://togithub.com/eslint/eslint/releases/tag/v8.57.0) [Compare Source](https://togithub.com/eslint/eslint/compare/v8.56.0...v8.57.0) #### Features - [`1120b9b`](https://togithub.com/eslint/eslint/commit/1120b9b7b97f10f059d8b7ede19de2572f892366) feat: Add loadESLint() API method for v8 ([#​18098](https://togithub.com/eslint/eslint/issues/18098)) (Nicholas C. Zakas) - [`dca7d0f`](https://togithub.com/eslint/eslint/commit/dca7d0f1c262bc72310147bcefe1d04ecf60acbc) feat: Enable `eslint.config.mjs` and `eslint.config.cjs` ([#​18066](https://togithub.com/eslint/eslint/issues/18066)) (Nitin Kumar) #### Bug Fixes - [`2196d97`](https://togithub.com/eslint/eslint/commit/2196d97094ba94d6d750828879a29538d1600de5) fix: handle absolute file paths in `FlatRuleTester` ([#​18064](https://togithub.com/eslint/eslint/issues/18064)) (Nitin Kumar) - [`69dd1d1`](https://togithub.com/eslint/eslint/commit/69dd1d1387b7b53617548d1f9f2c149f179e6e17) fix: Ensure config keys are printed for config errors ([#​18067](https://togithub.com/eslint/eslint/issues/18067)) (Nitin Kumar) - [`9852a31`](https://togithub.com/eslint/eslint/commit/9852a31edcf054bd5d15753ef18e2ad3216b1b71) fix: deep merge behavior in flat config ([#​18065](https://togithub.com/eslint/eslint/issues/18065)) (Nitin Kumar) - [`4c7e9b0`](https://togithub.com/eslint/eslint/commit/4c7e9b0b539ba879ac1799e81f3b6add2eed4b2f) fix: allow circular references in config ([#​18056](https://togithub.com/eslint/eslint/issues/18056)) (Milos Djermanovic) #### Documentation - [`84922d0`](https://togithub.com/eslint/eslint/commit/84922d0bfa10689a34a447ab8e55975ff1c1c708) docs: Show prerelease version in dropdown ([#​18139](https://togithub.com/eslint/eslint/issues/18139)) (Nicholas C. Zakas) - [`5b8c363`](https://togithub.com/eslint/eslint/commit/5b8c3636a3d7536535a6878eca0e5b773e4829d4) docs: Switch to Ethical Ads ([#​18117](https://togithub.com/eslint/eslint/issues/18117)) (Milos Djermanovic) - [`77dbfd9`](https://togithub.com/eslint/eslint/commit/77dbfd9887b201a46fc68631cbde50c08e1a8dbf) docs: show NEXT in version selectors ([#​18052](https://togithub.com/eslint/eslint/issues/18052)) (Milos Djermanovic) #### Chores - [`1813aec`](https://togithub.com/eslint/eslint/commit/1813aecc4660582b0678cf32ba466eb9674266c4) chore: upgrade [@​eslint/js](https://togithub.com/eslint/js)[@​8](https://togithub.com/8).57.0 ([#​18143](https://togithub.com/eslint/eslint/issues/18143)) (Milos Djermanovic) - [`5c356bb`](https://togithub.com/eslint/eslint/commit/5c356bb0c6f53c570224f8e9f02c4baca8fc6d2f) chore: package.json update for [@​eslint/js](https://togithub.com/eslint/js) release (Jenkins) - [`f4a1fe2`](https://togithub.com/eslint/eslint/commit/f4a1fe2e45aa1089fe775290bf530de82f34bf16) test: add more tests for ignoring files and directories ([#​18068](https://togithub.com/eslint/eslint/issues/18068)) (Nitin Kumar) - [`42c0aef`](https://togithub.com/eslint/eslint/commit/42c0aefaf6ea8b998b1c6db61906a79c046d301a) ci: Enable CI for `v8.x` branch ([#​18047](https://togithub.com/eslint/eslint/issues/18047)) (Milos Djermanovic)

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