### Description of the change
The `postgresql-ha` provides a dedicated deployment and service called `pgpool`. This application is a proxy that routes the db queries to the active database replica. There's a note about that in their README[^1].
Issue #502 is a side-effect of not using that proxy.
### Possible drawbacks
Using the Charts' default configuration, the `pgpool` deployment has 1 replica, making this a single-point of failure. But users can change the related `postgresql-ha.pgpool.replicaCount` to their needs.
### Applicable issues
- fixes#502
### Checklist
- [x] Templating unittests are added
[^1]: https://github.com/bitnami/charts/blob/main/bitnami/postgresql-ha/templates/postgresql/statefulset.yaml#introduction
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/542
Reviewed-by: pat-s <pat-s@noreply.gitea.com>
Co-authored-by: justusbunsi <sk.bunsenbrenner@gmail.com>
Co-committed-by: justusbunsi <sk.bunsenbrenner@gmail.com>
