Use a stable version of kernelci for the imminent release andELC-E training

Issue Background

The master version of kernelci does not provision - see #139 (closed)

Issue description

To get a release version (as a lot of development is happening in kernelci currently ) we will use an older version of kernelci which we know will provision

Acceptance criteria

• Freshly provisioned b@d builds local kernel/initramfs and health checks
• Branch checked in with merge request
• merge completed

This tasks block #142 (closed)