chore(deps): update dependency knip to v5.1.6 (#75)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [knip](https://knip.dev)
([source](https://github.com/webpro/knip/tree/HEAD/packages/knip)) |
[`5.1.5` -> `5.1.6`](https://renovatebot.com/diffs/npm/knip/5.1.5/5.1.6)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/knip/5.1.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/knip/5.1.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/knip/5.1.5/5.1.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/knip/5.1.5/5.1.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

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

### [`v5.1.6`](https://github.com/webpro/knip/releases/tag/5.1.6)

[Compare Source](https://github.com/webpro/knip/compare/5.1.5...5.1.6)

- Deprecate --experimental-tags, use --tags
([`3541bc7`](https://github.com/webpro/knip/commit/3541bc75))

</details>

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