Update binwiederhier/ntfy Docker tag to v2.13.0 (#899)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [binwiederhier/ntfy](https://ntfy.sh/) ([source](https://github.com/binwiederhier/ntfy)) | minor | `v2.12.0` -> `v2.13.0` |

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### Release Notes

<details>
<summary>binwiederhier/ntfy (binwiederhier/ntfy)</summary>

### [`v2.13.0`](https://github.com/binwiederhier/ntfy/releases/tag/v2.13.0)

[Compare Source](https://github.com/binwiederhier/ntfy/compare/v2.12.0...v2.13.0)

#### Changelog

- [`1ce08a1`](1ce08a18c0) Bump release notes

</details>

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### Configuration

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🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **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

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Reviewed-on: #899
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

clusters/cl01tl/platform/ntfy/values.yaml

@@ -9,7 +9,7 @@ ntfy:
         main:
           image:
             repository: binwiederhier/ntfy
-            tag: v2.12.0
+            tag: v2.13.0
             pullPolicy: IfNotPresent
           args: ["serve"]
           env: