chore(flux): update image cloudnative-pg 0.25.0 → 0.26.0 (clustertool) (#38359)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [cloudnative-pg](https://cloudnative-pg.io)
([source](https://redirect.github.com/cloudnative-pg/charts)) | minor |
`0.25.0` -> `0.26.0` |

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> [!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>

###
[`v0.26.0`](https://redirect.github.com/cloudnative-pg/charts/releases/tag/cloudnative-pg-v0.26.0)

[Compare
Source](https://redirect.github.com/cloudnative-pg/charts/compare/cloudnative-pg-v0.25.0...cloudnative-pg-v0.26.0)

CloudNativePG Operator Helm Chart

#### What's Changed

- chore(deps): update sigstore/cosign-installer action to v3.9.2 by
[@&#8203;renovate](https://redirect.github.com/renovate)\[bot]
in[https://github.com/cloudnative-pg/charts/pull/620](https://redirect.github.com/cloudnative-pg/charts/pull/620)0
- Release cloudnative-pg-v0.26.0 by
[@&#8203;github-actions](https://redirect.github.com/github-actions)\[bot]
in[https://github.com/cloudnative-pg/charts/pull/645](https://redirect.github.com/cloudnative-pg/charts/pull/645)5

**Full Changelog**:
https://github.com/cloudnative-pg/charts/compare/cloudnative-pg-v0.25.0...cloudnative-pg-v0.26.0

</details>

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clustertool/embed/generic/kubernetes/system/cloudnative-pg/app/helm-release.yaml

@@ -8,7 +8,7 @@ spec:
   chart:
     spec:
       chart: cloudnative-pg
-      version: 0.25.0
+      version: 0.26.0
       sourceRef:
         kind: HelmRepository
         name: cloudnative-pg