[mutter] ci: Disable a11y bus for tests

[Marco Trevisan <marcotrevi src gnome org>]

commit d4a0893d76d042486977b3a6c66966a3a9666f42
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon May 20 18:40:34 2019 +0200

    ci: Disable a11y bus for tests
    
    While the regular session bus is provided by `dbus-run-session`, the
    a11y bus is spawn by the "normal" D-Bus daemon (that is, dbus-broker
    in F30). This currently fails, either due to a bug or some missing
    dependencies in the container environment. But as we don't actually
    need the additional bus, just disable it via the environment to make
    not break tests when updating the base image to F30.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/582

 .gitlab-ci.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 867b529ae..63d8cee71 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -36,6 +36,7 @@ test-mutter:
     XDG_RUNTIME_DIR: "$CI_PROJECT_DIR/runtime-dir"
     GSETTINGS_SCHEMA_DIR: "$CI_PROJECT_DIR/build/data"
     MALLOC_CHECK_: "3"
+    NO_AT_BRIDGE: "1"
   script:
     - mkdir -m 700 $XDG_RUNTIME_DIR
     - glib-compile-schemas $GSETTINGS_SCHEMA_DIR