chore(deps): update pascalgn/automerge-action action to v0.16.0 by renovate (#17059)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[pascalgn/automerge-action](https://togithub.com/pascalgn/automerge-action)
| action | minor | `v0.15.6` -> `v0.16.0` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>pascalgn/automerge-action (pascalgn/automerge-action)</summary>

###
[`v0.16.0`](https://togithub.com/pascalgn/automerge-action/releases/tag/v0.16.0):
Release 0.16.0

[Compare
Source](https://togithub.com/pascalgn/automerge-action/compare/v0.15.6...v0.16.0)

- Fix README
[#&#8203;240](https://togithub.com/pascalgn/automerge-action/issues/240)
- Use GITHUB_SERVER_URL environment variable
[#&#8203;238](https://togithub.com/pascalgn/automerge-action/issues/238)
-   Update dependencies

</details>

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### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR becomes conflicted, 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

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This PR has been generated by [Renovate
Bot](https://togithub.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4xMjcuMCIsInVwZGF0ZWRJblZlciI6IjM3LjEyNy4wIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIn0=-->

.github/workflows/pr-validate.yaml

@@ -81,7 +81,7 @@ jobs:
         with:
           github-token: "${{ secrets.PERS_PAT }}"
       - name: automerge
-        uses: pascalgn/automerge-action@22948e0bc22f0aa673800da838595a3e7347e584 # v0.15.6
+        uses: pascalgn/automerge-action@4346d0b231a3ff92a91b825b9e4a22370f0263af # v0.16.0
         env:
           GITHUB_TOKEN: "${{ secrets.BOT_TOKEN }}"
           UPDATE_RETRIES: 12