chore(deps): update chromaui/action action to v16.9.0 (#8559)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [chromaui/action](https://redirect.github.com/chromaui/action) |
action | minor | `v16.8.0` → `v16.9.0` |

---

### Release Notes

<details>
<summary>chromaui/action (chromaui/action)</summary>

###
[`v16.9.0`](https://redirect.github.com/chromaui/action/blob/HEAD/CHANGELOG.md#v1690-Wed-May-06-2026)

[Compare
Source](https://redirect.github.com/chromaui/action/compare/v16.8.0...v16.9.0)

##### 🚀 Enhancement

- Allow skip without a project token
[#&#8203;1310](https://redirect.github.com/chromaui/chromatic-cli/pull/1310)
([@&#8203;codykaup](https://redirect.github.com/codykaup))

##### Authors: 1

- Cody Kaup ([@&#8203;codykaup](https://redirect.github.com/codykaup))

***

</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/UI5/webcomponents-react).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4xNTkuMiIsInVwZGF0ZWRJblZlciI6IjQzLjE1OS4yIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJkZXBlbmRlbmNpZXMiXX0=-->

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

Author: renovate[bot]

.github/workflows/chromatic.yml

@@ -25,7 +25,7 @@ jobs:
         run: yarn install --immutable
 
       - name: Publish to Chromatic
-        uses: chromaui/action@a200f3ba3ff81232c47ac7942347fb212b1a67dc # v16.8.0
+        uses: chromaui/action@84e0c70520cf012d7cbcd0d9677b4240f893e25e # v16.9.0
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           projectToken: ${{ secrets.CHROMATIC_PROJECT_TOKEN }}