chore(deps): update helm release postgresql to v12.11.1 (#77)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [postgresql](https://bitnami.com) ([source](https://github.com/bitnami/charts)) | minor | `12.10.1` -> `12.11.1` |

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Reviewed-on: https://git.home/nrdufour/home-ops/pulls/77
Co-authored-by: Renovate <[email protected]>
Co-committed-by: Renovate <[email protected]>

kubernetes/main/apps/database/postgresql/app/helm-release.yaml

@@ -8,7 +8,7 @@ spec:
   chart:
     spec:
       chart: postgresql
-      version: "12.10.1"
+      version: "12.11.1"
       sourceRef:
         kind: HelmRepository
         name: bitnami