chore(deps): update helm release postgresql to v13.1.2 (#137)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [postgresql](https://bitnami.com) ([source](https://github.com/bitnami/charts)) | patch | `13.1.0` -> `13.1.2` |

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Reviewed-on: https://git.home/nrdufour/home-ops/pulls/137
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: "13.1.0"
+      version: "13.1.2"
       sourceRef:
         kind: HelmRepository
         name: bitnami