.gitlab-ci.yml: unsplit stages

1 job for scratch/tzz/cicd in 24 minutes and 38 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
failed #421
test

00:24:38

 
Name Stage Failure
failed
test Test
Makefile:309: recipe for target 'check-doit' failed
make[2]: *** [check-doit] Error 1
make[2]: Leaving directory '/builds/emacs/emacs/test'
make[1]: *** [check] Error 2
Makefile:279: recipe for target 'check' failed
make[1]: Leaving directory '/builds/emacs/emacs/test'
make: *** [check] Error 2
Makefile:955: recipe for target 'check' failed
ERROR: Job failed: exit code 1