chore(deps): update dependency npm-user to v6 (#1357)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [npm-user](https://togithub.com/sindresorhus/npm-user) | [`^5.0.1` ->
`^6.0.0`](https://renovatebot.com/diffs/npm/npm-user/5.0.1/6.0.0) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/npm-user/6.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/npm-user/6.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/npm-user/5.0.1/6.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/npm-user/5.0.1/6.0.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>sindresorhus/npm-user (npm-user)</summary>

###
[`v6.0.0`](https://togithub.com/sindresorhus/npm-user/releases/tag/v6.0.0)

[Compare
Source](https://togithub.com/sindresorhus/npm-user/compare/v5.0.1...v6.0.0)

##### Breaking

- Require Node.js 18
([#&#8203;21](https://togithub.com/sindresorhus/npm-user/issues/21))
[`7a5c6c5`](https://togithub.com/sindresorhus/npm-user/commit/7a5c6c5)

</details>

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package.json

@@ -46,7 +46,7 @@
 		"git-url-parse": "^14.0.0",
 		"js-yaml": "^4.1.0",
 		"lazy-value": "^3.0.0",
-		"npm-user": "^5.0.1",
+		"npm-user": "^6.0.0",
 		"octokit": "^3.1.2",
 		"parse-author": "^2.0.0",
 		"prettier": "^3.1.0",