gitlab-ci: also build on CentOS 7.5 and 7.6

13 jobs for th/gitlab-ci-centos in 34 minutes and 15 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #323210
allowed to fail
checkpatch

00:01:07

manual #323215
allowed to fail manual
t_centos:7.5.1804
passed #323216
t_centos:7.6.1810

00:25:15

passed #323219
t_debian:9

00:14:28

passed #323221
t_debian:sid

00:19:58

manual #323220
allowed to fail manual
t_debian:testing
passed #323211
t_fedora:28

00:23:25

passed #323212
t_fedora:29

00:34:12

passed #323213
t_fedora:30

00:23:47

manual #323214
allowed to fail manual
t_fedora:rawhide
passed #323217
t_ubuntu:16.04

00:16:01

passed #323218
t_ubuntu:18.04

00:15:46

 
  External
canceled NetworkManager test verification

01:41:38