chore(deps): update azure/setup-helm action to v5 (#38)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [azure/setup-helm](https://github.com/azure/setup-helm) | action | major | `v4` → `v5` |

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### Release Notes

<details>
<summary>azure/setup-helm (azure/setup-helm)</summary>

### [`v5`](https://github.com/azure/setup-helm/compare/v4...v5)

[Compare Source](https://github.com/azure/setup-helm/compare/v4...v5)

</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 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

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
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Reviewed-on: #38
Reviewed-by: t.behrendt <t.behrendt@noreply.localhost>
Co-authored-by: Renovate Bot <renovate@t00n.de>
Co-committed-by: Renovate Bot <renovate@t00n.de>

.gitea/workflows/cd.yaml

@@ -127,7 +127,7 @@ jobs:
         with:
           repo: ${{ github.repository }}
       - uses: azure/setup-kubectl@15650b3ad78fff148532a140b8a4c821796b2d7b # v5.0.0
-      - uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4
+      - uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5
       - uses: azure/k8s-set-context@ae59a723ba9abe7a9655538854a025448dbab4aa # v4.0.2
         with:
           method: kubeconfig

.gitea/workflows/ci.yaml

@@ -84,7 +84,7 @@ jobs:
         with:
           repo: ${{ github.repository }}
       - uses: azure/setup-kubectl@15650b3ad78fff148532a140b8a4c821796b2d7b # v5.0.0
-      - uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4
+      - uses: azure/setup-helm@dda3372f752e03dde6b3237bc9431cdc2f7a02a2 # v5
       - uses: azure/k8s-set-context@ae59a723ba9abe7a9655538854a025448dbab4aa # v4.0.2
         with:
           method: kubeconfig