chore(deps): update dependency knip to v2.21.2 (#819)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [knip](https://togithub.com/webpro/knip) | [`2.21.1` ->
`2.21.2`](https://renovatebot.com/diffs/npm/knip/2.21.1/2.21.2) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/knip/2.21.2?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/knip/2.21.2?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/knip/2.21.1/2.21.2?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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|

---

### Release Notes

<details>
<summary>webpro/knip (knip)</summary>

### [`v2.21.2`](https://togithub.com/webpro/knip/releases/tag/2.21.2)

[Compare
Source](https://togithub.com/webpro/knip/compare/2.21.1...2.21.2)

- Update dependencies
([`fb9df38`](https://togithub.com/webpro/knip/commit/fb9df38))
- Look up importing module ourselves, don't defer to
`ts.LS.findReferences` (fixes
[#&#8203;229](https://togithub.com/webpro/knip/issues/229))
([`ca95b21`](https://togithub.com/webpro/knip/commit/ca95b21))
- Move existing re-exports test
([`36214cb`](https://togithub.com/webpro/knip/commit/36214cb))
- Add contents section to more docs + minor edits
([`908ddb5`](https://togithub.com/webpro/knip/commit/908ddb5))
- Install Markdown link checker
([`3e980e6`](https://togithub.com/webpro/knip/commit/3e980e6))
- Fix links in readme (fixes
[#&#8203;227](https://togithub.com/webpro/knip/issues/227))
([`b8ce60d`](https://togithub.com/webpro/knip/commit/b8ce60d))

</details>

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package.json

@@ -88,7 +88,7 @@
 		"globby": "^13.2.2",
 		"husky": "^8.0.3",
 		"jsonc-eslint-parser": "^2.3.0",
-		"knip": "2.21.1",
+		"knip": "2.21.2",
 		"lint-staged": "^14.0.1",
 		"markdownlint": "^0.30.0",
 		"markdownlint-cli": "^0.36.0",