[gjs: 2/2] Merge branch 'test-ci' into 'master'

[Philip Chimento <pchimento src gnome org>]

commit 42b7db24d56f2dd30466ffe4f4ee61595bd700c0
Merge: 42995db3 d21d42f6
Author: Philip Chimento <philip chimento gmail com>
Date:   Tue May 12 05:42:38 2020 +0000

    Merge branch 'test-ci' into 'master'
    
    Build new test CI images with Buildah
    
    See merge request GNOME/gjs!429

 .gitlab-ci.yml        |  70 ++++++++++++-------------------
 test/ci-images.sh     | 112 --------------------------------------------------
 test/extra/Dockerfile |  61 +++++++++++++++++++++++++++
 test/test-ci.sh       |   2 +-
 4 files changed, 88 insertions(+), 157 deletions(-)
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