[pitivi] flatpak: Update meson to 0.47.1

[Thibault Saunier <tsaunier src gnome org>]

commit b72a3012827eb000efec9dac9128f4f48fa98b65
Author: Thibault Saunier <tsaunier igalia com>
Date:   Wed Jul 25 12:55:55 2018 -0400

    flatpak: Update meson to 0.47.1
    
    Now required by GStreamer

 build/flatpak/org.pitivi.Pitivi.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/build/flatpak/org.pitivi.Pitivi.json b/build/flatpak/org.pitivi.Pitivi.json
index ae293315..cde7a26e 100644
--- a/build/flatpak/org.pitivi.Pitivi.json
+++ b/build/flatpak/org.pitivi.Pitivi.json
@@ -201,8 +201,8 @@
             "sources": [
                 {
                     "type": "archive",
-                    "url": 
"https://files.pythonhosted.org/packages/30/26/036340ecd1061d5c31f0eba4573b2ce63a28cd406c589d575322cb3279f5/meson-0.46.1.tar.gz";,
-                    "sha256": "0c6f39bdc7153fd24cadf07e57a4b9527755d292641126db85c1473babd0bdc9"
+                    "url": 
"https://files.pythonhosted.org/packages/f6/3f/4cc08fcfb1f6615279a3fbdf48720c77eeed8427aef37d28830f35548427/meson-0.47.1.tar.gz";,
+                    "sha256": "97f72573ec6c7a761ff04cc544e828178b434c95c548542679944eb6d0551b24"
                 }
             ]
         },