[gtk/gtk-3-24] ci: update the docker image to fedora 28

[Christoph Reiter <creiter src gnome org>]

commit f888b4958e0d5d960d00aef3d4dcd6bb4bd99d2a
Author: Christoph Reiter <creiter src gnome org>
Date:   Sun May 27 18:38:28 2018 +0200

    ci: update the docker image to fedora 28
    
    So we get a newer pango

 .gitlab-ci.yml           | 2 +-
 .gitlab-ci/Dockerfile    | 2 +-
 .gitlab-ci/run-docker.sh | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d5498e04ed..cdcd0bdb5b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: registry.gitlab.gnome.org/gnome/gtk/gtk-3-22:v2
+image: registry.gitlab.gnome.org/gnome/gtk/gtk-3-24:v1
 
 stages:
   - build
diff --git a/.gitlab-ci/Dockerfile b/.gitlab-ci/Dockerfile
index f0c5372062..a635411ad5 100644
--- a/.gitlab-ci/Dockerfile
+++ b/.gitlab-ci/Dockerfile
@@ -1,4 +1,4 @@
-FROM fedora:27
+FROM fedora:28
 
 RUN dnf -y install \
     adwaita-icon-theme \
diff --git a/.gitlab-ci/run-docker.sh b/.gitlab-ci/run-docker.sh
index 75a82ceb92..bd9ddeef05 100755
--- a/.gitlab-ci/run-docker.sh
+++ b/.gitlab-ci/run-docker.sh
@@ -8,7 +8,7 @@
 
 set -e
 
-TAG="registry.gitlab.gnome.org/gnome/gtk/gtk-3-22:v2"
+TAG="registry.gitlab.gnome.org/gnome/gtk/gtk-3-24:v1"
 
 # HOST_USER_ID gets used to create a user with the same ID so that files
 # created in the mounted volume have the same owner