[pango/serializer2] ci: Add json-glib to the image

[Matthias Clasen <matthiasc src gnome org>]

commit 681cba185c005e8ab677b0c3f7ed9f2b79275283
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Nov 18 13:00:23 2021 -0500

    ci: Add json-glib to the image
    
    This is needed now for the serialization code.

 .gitlab-ci.yml               | 2 +-
 .gitlab-ci/fedora.Dockerfile | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3b9f5200..6195501c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -8,7 +8,7 @@ stages:
 variables:
   COMMON_MESON_FLAGS: "--fatal-meson-warnings --werror"
   MESON_TEST_TIMEOUT_MULTIPLIER: 2
-  FEDORA_IMAGE: registry.gitlab.gnome.org/gnome/pango/fedora:v6
+  FEDORA_IMAGE: registry.gitlab.gnome.org/gnome/pango/fedora:v7
 
 .only-default:
   only:
diff --git a/.gitlab-ci/fedora.Dockerfile b/.gitlab-ci/fedora.Dockerfile
index ebb1e6b5..e905deee 100644
--- a/.gitlab-ci/fedora.Dockerfile
+++ b/.gitlab-ci/fedora.Dockerfile
@@ -26,6 +26,7 @@ RUN dnf -y install \
     harfbuzz-devel \
     hicolor-icon-theme \
     itstool \
+    json-glib-devel \
     libasan \
     lcov \
     libthai-devel \