Update .gitlab-ci.yml

1 job for master in 5 seconds (queued for 2 seconds)
Status Name Job ID Coverage
failed build #4806


Name Stage Failure
build Build
$ git checkout $CI_COMMIT_REF_NAME
Previous HEAD position was d571020... Update .gitlab-ci.yml
Switched to branch 'master'
Your branch is behind 'origin/master' by 2 commits, and can be fast-forwarded.
(use "git pull" to update your local branch)
$ git pull
fatal: unable to access 'https://gitlab-ci-token:[MASKED]@gitlab.ce.jku.at/peter.eder/pandoc.git/': server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
Cleaning up file based variables
ERROR: Job failed: exit code 1