[gnome-games/wip/exalm/stabilize: 2/2] flatpak: Stabilize unit test manifest

[Alexander Mikhaylenko <alexm src gnome org>]

commit 3ed690ea3323844a2722d17fd4b725c5bb496bf2
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 | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/flatpak/org.gnome.Games.UnitTests.yml b/flatpak/org.gnome.Games.UnitTests.yml
index fe748e7a..9a6f375a 100644
--- a/flatpak/org.gnome.Games.UnitTests.yml
+++ b/flatpak/org.gnome.Games.UnitTests.yml
@@ -1,6 +1,6 @@
 app-id: org.gnome.Games.UnitTests
 runtime: org.gnome.Platform
-runtime-version: master
+runtime-version: 3.36
 sdk: org.gnome.Sdk
 command: games-unit-tests
 tags:
@@ -78,3 +78,5 @@ modules:
     sources:
       - type: git
         url: https://gitlab.gnome.org/GNOME/retro-gtk.git
+        tag: 0.18.1
+        commit: 08e84543076364ca1d2141a9bdb7d85940b7c8f4