[gtk/ci-update-gtk3: 2/3] ci: Add libXtst-devel

[Emmanuele Bassi <ebassi src gnome org>]

commit 40264c7ab30d307996799e0ed70ce6a7d6ba1d31
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon Dec 16 19:59:47 2019 +0000

    ci: Add libXtst-devel
    
    Needed for at-spi2-core.

 .gitlab-ci/Dockerfile | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitlab-ci/Dockerfile b/.gitlab-ci/Dockerfile
index 16047d507a..29e65ccf06 100644
--- a/.gitlab-ci/Dockerfile
+++ b/.gitlab-ci/Dockerfile
@@ -41,6 +41,7 @@ RUN dnf -y install \
     libxkbcommon-devel \
     libXrandr-devel \
     libXrender-devel \
+    libXtst-devel \
     make \
     mesa-libEGL-devel \
     mesa-libwayland-egl-devel \