[glib-networking/f28: 1/2] Revert "Upgrade CI to Fedora 29"

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 32fe630936906829cbd029df33b177b103a44474
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Sun Nov 11 19:25:20 2018 -0600

    Revert "Upgrade CI to Fedora 29"
    
    This reverts commit be2598039e1c39ffd6c6a4f9649a5dacdba621ed.
    
    Let's try fixing F28 again. Blind, of course. I don't want to install
    it.

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6fe7d95..7c4358e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: fedora:29
+image: fedora:28
 
 variables:
   ADDITIONAL_DEPENDENCIES: gsettings-desktop-schemas gcc libasan