fix(helm): update chart cloudnative-pg ( 0.21.4 → 0.21.5 ) (#3840)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [cloudnative-pg](https://cloudnative-pg.io)
([source](https://togithub.com/cloudnative-pg/charts)) | patch |
`0.21.4` -> `0.21.5` |

---

### Release Notes

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

###
[`v0.21.5`](https://togithub.com/cloudnative-pg/charts/releases/tag/cloudnative-pg-v0.21.5)

[Compare
Source](https://togithub.com/cloudnative-pg/charts/compare/cloudnative-pg-v0.21.4...cloudnative-pg-v0.21.5)

CloudNativePG Operator Helm Chart

#### What's Changed

- chore(deps): update actions/checkout action to v4.1.7 by
[@&#8203;renovate](https://togithub.com/renovate) in
[https://github.com/cloudnative-pg/charts/pull/318](https://togithub.com/cloudnative-pg/charts/pull/318)
- Release cloudnative-pg-v0.21.5 by
[@&#8203;github-actions](https://togithub.com/github-actions) in
[https://github.com/cloudnative-pg/charts/pull/315](https://togithub.com/cloudnative-pg/charts/pull/315)

**Full Changelog**:
cloudnative-pg/charts@cloudnative-pg-v0.21.4...cloudnative-pg-v0.21.5

</details>

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy40MDcuMyIsInVwZGF0ZWRJblZlciI6IjM3LjQwNy4zIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJyZW5vdmF0ZS9oZWxtIiwidHlwZS9wYXRjaCJdfQ==-->

Co-authored-by: repo-jeeves[bot] <106431701+repo-jeeves[bot]@users.noreply.github.com>

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

@@ -9,7 +9,7 @@ spec:
   chart:
     spec:
       chart: cloudnative-pg
-      version: 0.21.4
+      version: 0.21.5
       sourceRef:
         kind: HelmRepository
         name: cloudnative-pg-charts