[gnome-games] flatpak: Disable pulseaudio for retro-gtk in unit tests

[Alexander Mikhaylenko <alexm src gnome org>]

commit 7daa42784cbe17721b0e7fe3ccd0ea286cfd164b
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Sat Oct 31 20:23:20 2020 +0500

    flatpak: Disable pulseaudio for retro-gtk in unit tests
    
    That option exists specifically for this, we should pass it. I don't know
    why it didn't fail all this time.

 flatpak/org.gnome.Games.UnitTests.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/flatpak/org.gnome.Games.UnitTests.yml b/flatpak/org.gnome.Games.UnitTests.yml
index 47c78d49..4ec7d8ce 100644
--- a/flatpak/org.gnome.Games.UnitTests.yml
+++ b/flatpak/org.gnome.Games.UnitTests.yml
@@ -75,6 +75,7 @@ modules:
     builddir: true
     config-opts:
       - -Dinstall-tests=true
+      - -Dpulseaudio=disabled
     sources:
       - type: git
         url: https://gitlab.gnome.org/GNOME/retro-gtk.git