Update .gitlab-ci.yml

1 job for master in 1 minute and 26 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed #96
pages
build

00:01:26

 
Name Stage Failure
failed
build Test There is an unknown failure, please try again
   b95079b..f282828  master     -> origin/master
Checking out f2828289 as master...
Skipping Git submodules setup
$ tlmgr init-usertree
(running on Debian, switching to user mode!)
tlmgr: user mode database already set up in
tlmgr: /root/texmf/tlpkg/texlive.tlpdb
tlmgr: not overwriting it.
ERROR: Job failed: exit code 1