Update runtime docker image from ubi-minimal:9.6 to 9.8

### Description

Image ubi/ubi-minial:9.6 is affected by
```
CVE-2026-31431 - A local privilege escalation (LPE) vulnerability affecting the Linux kernel has been publicly disclosed on April 29, 2026.
```
To mitigate the risk, `Production runtime image` should be upgraded to 9.8

### Deliverables

- [x] Upgrade `Production runtime image` to `registry.access.redhat.com/ubi9/ubi-minimal:9.6`
- [ ] Execute the new build of the software with new image

Find where the Production runtime image is defined and confirm the current ubi-minimal reference. Update that definition to the requested 9.8 image, then execute a new software build to verify it completes with the updated image.

Written by the indexing model from the issue text.