### Description of the change
Make the test-connection Pod optional and override the wget container's image.
### Benefits
Allows users to enable/disabled the test-connection Pod and override the wget container's image.
### Checklist
- [X] Parameters are documented in the `values.yaml` and added to the `README.md` using [readme-generator-for-helm](https://github.com/bitnami-labs/readme-generator-for-helm)
- [X] Breaking changes are documented in the `README.md`
Co-authored-by: Umer Anwar <umer.anwar@nuance.com>
Co-authored-by: ooms97 <anwarumer97@gmail.com>
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/360
Reviewed-by: pat-s <pat-s@noreply.gitea.io>
Reviewed-by: justusbunsi <justusbunsi@noreply.gitea.io>
Co-authored-by: ooms97 <ooms97@noreply.gitea.io>
Co-committed-by: ooms97 <ooms97@noreply.gitea.io>
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