chore(deps): update dependency oxlint to v1.21.0 (#14445)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [oxlint](https://oxc.rs)
([source](https://redirect.github.com/oxc-project/oxc/tree/HEAD/npm/oxlint))
| [`1.20.0` ->
`1.21.0`](https://renovatebot.com/diffs/npm/oxlint/1.20.0/1.21.0) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/oxlint/1.21.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/oxlint/1.21.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/oxlint/1.20.0/1.21.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/oxlint/1.20.0/1.21.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>oxc-project/oxc (oxlint)</summary>

###
[`v1.21.0`](https://redirect.github.com/oxc-project/oxc/blob/HEAD/npm/oxlint/CHANGELOG.md#1210---2025-10-08)

[Compare
Source](https://redirect.github.com/oxc-project/oxc/compare/oxlint_v1.20.0...oxlint_v1.21.0)

##### 🐛 Bug Fixes

-
[`6e8d2f6`](https://redirect.github.com/oxc-project/oxc/commit/6e8d2f6)
language\_server: Ignore JS plugins
([#&#8203;14379](https://redirect.github.com/oxc-project/oxc/issues/14379))
(overlookmotel)

</details>

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