[gtksourceview] gitlab-ci: install expat

[Christian Hergert <chergert src gnome org>]

commit d422827b59b94526c26c906df64d12a047d5a552
Author: Christian Hergert <chergert redhat com>
Date:   Wed Feb 2 15:13:30 2022 -0800

    gitlab-ci: install expat

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 24e7d998..b06cf5c8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -27,7 +27,7 @@ reference:
     variables:
         MESON_FLAGS: "-Dwerror=true --buildtype=release"
     script:
-        - sudo dnf -y install git libpng-devel libjpeg-turbo-devel
+        - sudo dnf -y install git libpng-devel libjpeg-turbo-devel expat-devel
         - mkdir -p pfx/
         - meson ${MESON_FLAGS} --prefix=${PWD}/pfx -Dgtk_doc=true _build
         - ninja -C _build install