chore(deps): update helm chart cloudnative-pg to 0.20.0 by renovate (#16546)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [cloudnative-pg](https://cloudnative-pg.io)
([source](https://togithub.com/cloudnative-pg/charts)) | minor |
`0.19.1` -> `0.20.0` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>cloudnative-pg/charts (cloudnative-pg)</summary>

###
[`v0.20.0`](https://togithub.com/cloudnative-pg/charts/compare/cloudnative-pg-v0.19.1...cloudnative-pg-v0.20.0)

[Compare
Source](https://togithub.com/cloudnative-pg/charts/compare/cloudnative-pg-v0.19.1...cloudnative-pg-v0.20.0)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "before 10pm on tuesday" in timezone
Europe/Amsterdam, Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **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://togithub.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4xMDcuMCIsInVwZGF0ZWRJblZlciI6IjM3LjEwNy4xIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIn0=-->

charts/operators/cloudnative-pg/Chart.yaml

@@ -1,7 +1,7 @@
 kubeVersion: ">=1.24.0-0"
 apiVersion: v2
 name: cloudnative-pg
-version: 5.0.0
+version: 5.1.0
 appVersion: latest
 description: CloudNativePG is a clustered postgresql database operator
 home: https://truecharts.org/charts/operators/cloudnative-pg
@@ -29,7 +29,7 @@ dependencies:
     tags: []
     import-values: []
   - name: cloudnative-pg
-    version: 0.19.1
+    version: 0.20.0
     repository: https://cloudnative-pg.github.io/charts
     condition: ""
     alias: cloudnative-pg