Update Helm release postgres-cluster to v6

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [argo-cd](https://github.com/argoproj/argo-helm) | minor | `8.1.4` -> `8.2.0` |

---

### Release Notes

<details>
<summary>argoproj/argo-helm (argo-cd)</summary>

### [`v8.2.0`](https://github.com/argoproj/argo-helm/releases/tag/argo-cd-8.2.0)

[Compare Source](https://github.com/argoproj/argo-helm/compare/argo-cd-8.1.4...argo-cd-8.2.0)

A Helm chart for Argo CD, a declarative, GitOps continuous delivery tool for Kubernetes.

#### What's Changed

- feat(argo-cd): Support ability to override `.global.networkPolicy.create` at the component level by [@&#8203;AswinT22](https://github.com/AswinT22) in https://github.com/argoproj/argo-helm/pull/3382

#### New Contributors

- [@&#8203;AswinT22](https://github.com/AswinT22) made their first contribution in https://github.com/argoproj/argo-helm/pull/3382

**Full Changelog**: https://github.com/argoproj/argo-helm/compare/argo-cd-8.1.4...argo-cd-8.2.0

</details>

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### 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 this update again.

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

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Reviewed-on: #1002
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Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

clusters/cl01tl/deployment/argocd/Chart.yaml

@@ -15,7 +15,7 @@ maintainers:
   - name: alexlebens
 dependencies:
   - name: argo-cd
-    version: 8.1.4
+    version: 8.2.0
     repository: https://argoproj.github.io/argo-helm
 icon: https://cdn.jsdelivr.net/gh/selfhst/icons/png/argo-cd.png
 appVersion: 3.0.0