chore(CI builds): Expose an in-cluster Helm repo off of the OCI chart pulled

[rm3l]

Description of the change

#152 introduced the automatic generation of a HelmChartRepository Resource in the cluster, but the problem is that it does not support neither OCI artifacts nor file references in its connectionConfig. It only supports repos served over HTTP.
This PR extends this approach by also deploying an in-cluster (not exposed publicly) web server that serves the necessary Helm repo files (index.yaml and chart archive from the OCI artifact).
With this, the corresponding chart CI version now shows up in the list on the OCP console, and it is possible to upgrade via the web console after deploying the Chart via CLI.

Existing or Associated Issue(s)

Ref: https://issues.redhat.com/browse/RHIDP-7251
Ref: https://issues.redhat.com/browse/RHIDP-6668

Additional Information

Checklist

• Chart version bumped in Chart.yaml according to semver.
• Variables are documented in the values.yaml and added to the README.md. The pre-commit utility can be used to generate the necessary content. Use pre-commit run -a to apply changes.
• JSON Schema template updated and re-generated the raw schema via pre-commit hook.
• List tests pass for Chart using the Chart Testing tool and the ct lint command.

/cc @nickboldt @Omar-AlJaljuli @gustavolira

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[nickboldt]

cool beans, works for me assuming it's been tested (and that's how the screenshots were created).

/lgtm
/approve