Based on this Slack thread: https://redhat-internal.slack.com/archives/CG5GV6CJD/p1730276408851879

The option tls_hostname_override is deprecated and it fail the deployment in certain conditions. It should be removed from the documentation.
The issue is missing from release notes, it should be determined if this is a breaking change that will have to be added to the release notes.

It seems to be deprecated since Pipelines 1.15.