[gnome-autoar] ci: Add meson to the image

[Ondrej Holy <oholy src gnome org>]

commit 94948f4f15b43b5511fa75904e7189a53c395508
Author: Ondrej Holy <oholy redhat com>
Date:   Wed Aug 4 15:23:49 2021 +0200

    ci: Add meson to the image
    
    The meson package is not part of the CI image as Autotools are used
    currently. Let's add meson as a preparation for the upcoming meson port.

 .gitlab/Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab/Dockerfile b/.gitlab/Dockerfile
index 13df9b1..387dbe8 100644
--- a/.gitlab/Dockerfile
+++ b/.gitlab/Dockerfile
@@ -1,5 +1,5 @@
 FROM fedora:rawhide
 
-RUN dnf install --nogpg -y dnf-plugins-core git gnome-common gtk-doc \
+RUN dnf install --nogpg -y dnf-plugins-core git gnome-common gtk-doc meson \
  && dnf builddep --nogpg -y gnome-autoar \
  && dnf clean all