[gnome-boxes/alatiera/flatpak-runtime] Flatpak: use `master` branch of the Gnome Runtime

[Jordan Petridis <jpetridis src gnome org>]

commit c94fe64c13034c77499e846316dda81d984e40c1
Author: Jordan Petridis <jordanpetridis protonmail com>
Date:   Tue Aug 7 15:29:17 2018 +0000

    Flatpak: use `master` branch of the Gnome Runtime

 .gitlab-ci.yml                         | 2 +-
 build-aux/flatpak/org.gnome.Boxes.json | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 97925402..22b54911 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,7 +7,7 @@ variables:
     BUNDLE: "gnome-boxes.flatpak"
 
 flatpak:
-    image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:3.28 
+    image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master
     stage: test
     variables:
         MANIFEST_PATH: "build-aux/flatpak/org.gnome.Boxes.json"
diff --git a/build-aux/flatpak/org.gnome.Boxes.json b/build-aux/flatpak/org.gnome.Boxes.json
index 8c506de5..057a4564 100644
--- a/build-aux/flatpak/org.gnome.Boxes.json
+++ b/build-aux/flatpak/org.gnome.Boxes.json
@@ -1,7 +1,7 @@
 {
     "app-id" : "org.gnome.BoxesDevel",
     "runtime" : "org.gnome.Platform",
-    "runtime-version" : "3.28",
+    "runtime-version" : "master",
     "sdk" : "org.gnome.Sdk",
     "command" : "gnome-boxes",
     "tags" : ["devel", "development", "nightly"],