[gnome-games/wip/exalm/stabilize: 13/13] flatpak: Stabilize unit test manifest

[Alexander Mikhaylenko <alexm src gnome org>]

commit 49b07dce9a1ae9372c6dc82ca5fd267308c305ab
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sat Mar 7 01:59:18 2020 +0500

    flatpak: Stabilize unit test manifest

 flatpak/org.gnome.Games.UnitTests.yml | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/flatpak/org.gnome.Games.UnitTests.yml b/flatpak/org.gnome.Games.UnitTests.yml
index 6afb8ba3..9a6f375a 100644
--- a/flatpak/org.gnome.Games.UnitTests.yml
+++ b/flatpak/org.gnome.Games.UnitTests.yml
@@ -78,3 +78,5 @@ modules:
     sources:
       - type: git
         url: https://gitlab.gnome.org/GNOME/retro-gtk.git
+        tag: 0.18.1
+        commit: 08e84543076364ca1d2141a9bdb7d85940b7c8f4