CI: fix image name to satisfy regexp

7 jobs for !476 with ci_fix_fastbuild in 42 minutes and 50 seconds (queued for 1 second)
detached
Status Name Job ID Coverage
  Precheck
passed fast-build #2743

00:05:23

 
  Prepare
passed centos-superbuild-prepare #2745

00:03:25

passed ubuntu-superbuild-prepare #2744

00:01:34

 
  Build
passed centos-superbuild-build #2749

00:33:08

passed debian-build #2746

00:25:04

passed ubuntu-llvm #2747

00:34:00

passed ubuntu-superbuild-build #2748

00:33:44