chore(flux): update image app-template 4.1.1 → 4.1.2 (clustertool) (#36566)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [app-template](https://redirect.github.com/bjw-s-labs/helm-charts) |
patch | `4.1.1` -> `4.1.2` |

---

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> Some dependencies could not be looked up. Check the Dependency
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---

### Release Notes

<details>
<summary>bjw-s-labs/helm-charts (app-template)</summary>

###
[`v4.1.2`](https://redirect.github.com/bjw-s-labs/helm-charts/releases/tag/app-template-4.1.2)

[Compare
Source](https://redirect.github.com/bjw-s-labs/helm-charts/compare/app-template-4.1.1...app-template-4.1.2)

#### Changelog:

##### Changed

-   Upgraded the common library to v4.1.2
- [Upgrade
notes](https://bjw-s-labs.github.io/helm-charts/docs/app-template/upgrade-instructions/)
- [Detailed release
notes](https://redirect.github.com/bjw-s-labs/helm-charts/releases/tag/common-4.1.2)

</details>

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clustertool/embed/generic/kubernetes/system/system-upgrade-controller/app/helm-release.yaml

@@ -10,7 +10,7 @@ spec:
   chart:
     spec:
       chart: app-template
-      version: 4.1.1
+      version: 4.1.2
       sourceRef:
         kind: HelmRepository
         name: bjw-s