Update CI_IMAGE to include Debian image flavor
What does this MR do?
It appears an older job overwrote the CI image with Debian bookworm instead of Debian bullseye, causing builds to fail. Update the image name to include the Debian flavor to avoid this issue.
Why was this MR needed?
Jobs such as https://gitlab.com/gitlab-org/gitlab-runner/-/jobs/5459868608 failed.
Edited by Stan Hu