[pitivi/sdk: 6/7] build: Add pygobject temporarily

[Alexandru Băluț <alexbalut src gnome org>]

commit 3a48dfb00a75349e4c4da574964efe67aab16b6c
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Tue Jan 21 12:12:37 2020 +0100

    build: Add pygobject temporarily
    
    To be reverted when this fix ends up in the GNOME SDK:
    https://gitlab.gnome.org/GNOME/pygobject/commit/c10c9856e4121b048f55a2c7b98a6fd8e8683c23
    
    and the following test passes:
    ptvtests -t tests.test_effects.EffectsPropertiesManagerTest.test_dependent_properties

 build/flatpak/org.pitivi.Pitivi.json | 10 ++++++++++
 1 file changed, 10 insertions(+)
---
diff --git a/build/flatpak/org.pitivi.Pitivi.json b/build/flatpak/org.pitivi.Pitivi.json
index 208b6f93..233cf32c 100644
--- a/build/flatpak/org.pitivi.Pitivi.json
+++ b/build/flatpak/org.pitivi.Pitivi.json
@@ -443,6 +443,16 @@
                 }
             ]
         },
+        {
+            "name": "pygobject",
+            "buildsystem": "meson",
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://gitlab.gnome.org/GNOME/pygobject.git";
+                }
+            ]
+        },
         {
             "name": "pitivi",
             "buildsystem": "meson",