[pitivi] flatpak: Use Gnome 3.22

[Alexandru Băluț <alexbalut src gnome org>]

commit d9d90cbe5dbe9bafeb3b2e124c651e9b956bd7ed
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Tue Oct 4 15:46:50 2016 +0200

    flatpak: Use Gnome 3.22
    
    Fixes https://phabricator.freedesktop.org/T7446
    because it has the portals which allow opening URIs when using
    high-level APIs, which presumably are used by the About dialog.
    
    Reviewed-by: Thibault Saunier <tsaunier gnome org>
    Differential Revision: https://phabricator.freedesktop.org/D1345

 build/flatpak/pitivi-flatpak       |    2 +-
 build/flatpak/pitivi.template.json |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/build/flatpak/pitivi-flatpak b/build/flatpak/pitivi-flatpak
index 76266e7..0c6be54 100755
--- a/build/flatpak/pitivi-flatpak
+++ b/build/flatpak/pitivi-flatpak
@@ -30,7 +30,7 @@ import tempfile
 from urllib.parse import urlparse
 from urllib.request import urlretrieve
 
-SDK_BRANCH = "3.20"
+SDK_BRANCH = "3.22"
 PITIVI_BRANCH = "master"
 FLATPAK_REQ = "0.6.4"
 
diff --git a/build/flatpak/pitivi.template.json b/build/flatpak/pitivi.template.json
index a867e73..5660b23 100644
--- a/build/flatpak/pitivi.template.json
+++ b/build/flatpak/pitivi.template.json
@@ -2,7 +2,7 @@
     "app-id": "org.pitivi.Pitivi",
     "version": "master",
     "runtime": "org.gnome.Platform",
-    "runtime-version": "3.20",
+    "runtime-version": "3.22",
     "finish-args": ["--command=pitivi",
                     "--share=ipc", "--socket=x11", "--socket=session-bus", "--socket=pulseaudio",
                     "--talk-name=ca.desrt.dconf",