[staging] Update Chart cloudnative-pg to 0.20.2 (#3231)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [cloudnative-pg](https://cloudnative-pg.io)
([source](https://togithub.com/cloudnative-pg/charts)) | patch |
`0.20.1` -> `0.20.2` |

---

### Release Notes

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

###
[`v0.20.2`](https://togithub.com/cloudnative-pg/charts/releases/tag/cloudnative-pg-v0.20.2)

[Compare
Source](https://togithub.com/cloudnative-pg/charts/compare/cloudnative-pg-v0.20.1...cloudnative-pg-v0.20.2)

CloudNativePG Operator Helm Chart

#### What's Changed

-   Updated CloudNativePG Operator to `v1.22.2`
-   Added PGP Helm chart provenance
- Bug Fix: Grafana dashboard label defaults to "1" by
[@&#8203;orlovmyk](https://togithub.com/orlovmyk) in
[https://github.com/cloudnative-pg/charts/pull/203](https://togithub.com/cloudnative-pg/charts/pull/203)

#### New Contributors

- [@&#8203;orlovmyk](https://togithub.com/orlovmyk) made their first
contribution in
[https://github.com/cloudnative-pg/charts/pull/203](https://togithub.com/cloudnative-pg/charts/pull/203)

**Full Changelog**:
cloudnative-pg/charts@cluster-v0.0.2...cloudnative-pg-v0.20.2

</details>

---

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kubernetes/staging/apps/dbms/cloudnative-pg/cloudnative-pg/helm-release.yaml

@@ -10,7 +10,7 @@ spec:
   chart:
     spec:
       chart: cloudnative-pg
-      version: 0.20.1
+      version: 0.20.2
       sourceRef:
         kind: HelmRepository
         name: cloudnative-pg-charts