chore(deps): update dependency unified to v11.0.5 (#501)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [unified](https://unifiedjs.com)
([source](https://togithub.com/unifiedjs/unified)) | [`11.0.4` ->
`11.0.5`](https://renovatebot.com/diffs/npm/unified/11.0.4/11.0.5) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/unified/11.0.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/unified/11.0.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/unified/11.0.4/11.0.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/unified/11.0.4/11.0.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>unifiedjs/unified (unified)</summary>

###
[`v11.0.5`](https://togithub.com/unifiedjs/unified/releases/tag/11.0.5)

[Compare
Source](https://togithub.com/unifiedjs/unified/compare/11.0.4...11.0.5)

##### Fix

- [`1e0863a`](https://togithub.com/unifiedjs/unified/commit/1e0863a) Fix
exception on older browsers
by [@&#8203;justinbhopper](https://togithub.com/justinbhopper) in
[https://github.com/unifiedjs/unified/pull/246](https://togithub.com/unifiedjs/unified/pull/246)

**Full Changelog**:
unifiedjs/unified@11.0.4...11.0.5

</details>

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