chore(deps): update dependency knip to v5.6.0 (#267)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [knip](https://knip.dev)
([source](https://togithub.com/webpro/knip/tree/HEAD/packages/knip)) |
[`5.5.0` -> `5.6.0`](https://renovatebot.com/diffs/npm/knip/5.5.0/5.6.0)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/knip/5.6.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/knip/5.6.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/knip/5.5.0/5.6.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/knip/5.5.0/5.6.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

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

###
[`v5.6.0`](https://togithub.com/webpro/knip/compare/5.5.0...2b996ab80a25840104b3ebdf9960e3ea9d4b142d)

[Compare Source](https://togithub.com/webpro/knip/compare/5.5.0...5.6.0)

</details>

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