rhel-6: run tier1 tests on brew builds

related: &155 (closed)

• Onboard to CKI kt1: redhat/centos-stream/tests/kernel/qe-pipeline-definition!383 (merged)
• email report: redhat/centos-stream/tests/kernel/qe-pipeline-definition!383 (merged)
• CKI doesn't trigger brew run: pipeline-data!277 (merged)