chore(deps): update unpoller/unpoller to v2.28.0 (#3612)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [ghcr.io/unpoller/unpoller](https://github.com/unpoller/unpoller) | minor | `v2.27.0` → `v2.28.0` |
| [unpoller/unpoller](https://github.com/unpoller/unpoller) | minor | `v2.27.0` → `v2.28.0` |

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### Release Notes

<details>
<summary>unpoller/unpoller (ghcr.io/unpoller/unpoller)</summary>

### [`v2.28.0`](https://github.com/unpoller/unpoller/releases/tag/v2.28.0)

[Compare Source](https://github.com/unpoller/unpoller/compare/v2.27.0...v2.28.0)

##### Changelog

- [`490ae45`](490ae4567a) Merge pull request [#&#8203;934](https://github.com/unpoller/unpoller/issues/934) from unpoller/upgrade-unifi-5-12-0
- [`a94b530`](a94b530adf) bump unifi version

</details>

---

### Configuration

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

🚦 **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 these updates again.

---

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

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
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Reviewed-on: #3612
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

clusters/cl01tl/helm/unpoller/Chart.yaml

@@ -21,4 +21,4 @@ dependencies:
     version: 4.6.2
 icon: https://camo.githubusercontent.com/c5d07a5b3acfeac8e1c25bf56f440ffe032b86e4e7f15de82357f022a43fc927/68747470733a2f2f756e706f6c6c65722e636f6d2f696d672f6c6f676f2e706e67
 # renovate: datasource=github-releases depName=unpoller/unpoller
-appVersion: v2.27.0
+appVersion: v2.28.0

clusters/cl01tl/helm/unpoller/values.yaml

@@ -9,7 +9,7 @@ unpoller:
         main:
           image:
             repository: ghcr.io/unpoller/unpoller
-            tag: v2.27.0
+            tag: v2.28.0
             pullPolicy: IfNotPresent
           env:
             - name: UP_UNIFI_CONTROLLER_0_SAVE_ALARMS