chore(deps): update dependency knip to v6.20.0 (#1028)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Adoption](https://docs.renovatebot.com/merge-confidence/) |
[Passing](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|---|---|
| [knip](https://knip.dev)
([source](https://redirect.github.com/webpro-nl/knip/tree/HEAD/packages/knip))
| [`6.19.0` →
`6.20.0`](https://renovatebot.com/diffs/npm/knip/6.19.0/6.20.0) |
![age](https://developer.mend.io/api/mc/badges/age/npm/knip/6.20.0?slim=true)
|
![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/knip/6.20.0?slim=true)
|
![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/knip/6.19.0/6.20.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/knip/6.19.0/6.20.0?slim=true)
|

---

### Release Notes

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

###
[`v6.20.0`](https://redirect.github.com/webpro-nl/knip/releases/tag/knip%406.20.0):
Release 6.20.0

[Compare
Source](https://redirect.github.com/webpro-nl/knip/compare/knip@6.19.0...knip@6.20.0)

- Add raw transfer opt-out (resolve
[#&#8203;1813](https://redirect.github.com/webpro-nl/knip/issues/1813))
([`6f08c68`](https://redirect.github.com/webpro-nl/knip/commit/6f08c680ac4acd6edf0806ba3c1c5c8f7bca24cd))
- Fix cached plugin config cycles (resolve
[#&#8203;1811](https://redirect.github.com/webpro-nl/knip/issues/1811))
([`2bc2f24`](https://redirect.github.com/webpro-nl/knip/commit/2bc2f2420ca71db1ae70846626c6152896d270ee))

</details>

---

### Configuration

📅 **Schedule**: (UTC)

- Branch creation
  - At any time (no schedule defined)
- Automerge
  - At any time (no schedule defined)

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/JoshuaKGoldberg/ts-api-utils).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4yNDIuMiIsInVwZGF0ZWRJblZlciI6IjQzLjI0Mi4yIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJkZXBlbmRlbmNpZXMiXX0=-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]