### Description of the change
This adds unittests for the default configuration of our dependencies.
### Benefits
We are able to detect changes in upstream Charts for those settings.
### Applicable issues
- fixes#409
### Additional information
I merged existing unittests with the new ones for `postgresql-ha` and `postgresql`.
However, I decided to not do this for `redis-cluster` and `redis`, because the existing tests[^1] also ensure how the Chart behaves when both redis dependencies are disabled. It didn't felt right to split those files.
### Checklist
- [x] Templating unittests are added
Signed-off-by: justusbunsi <sk.bunsenbrenner@gmail.com>
[^1]: e733287dc2/unittests/config/cache-config.yaml, e733287dc2/unittests/config/queue-config.yaml, e733287dc2/unittests/config/session-config.yaml
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/748
Co-authored-by: justusbunsi <sk.bunsenbrenner@gmail.com>
Co-committed-by: justusbunsi <sk.bunsenbrenner@gmail.com>
