[gnome-continuous] Bump up the Meson version

[Emmanuele Bassi <ebassi src gnome org>]

commit 960cf85850debab2e01c5ac0d92785aa8d983cdd
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Jul 19 12:20:25 2018 +0100

    Bump up the Meson version
    
    GNOME Online Accounts needs the latest stable release.

 manifest.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/manifest.json b/manifest.json
index 1bff2c7..ec83505 100644
--- a/manifest.json
+++ b/manifest.json
@@ -66,7 +66,7 @@
                  "noarch": true},
 
                 {"src": "git:https://github.com/mesonbuild/meson.git";,
-                 "tag": "0.47.1",
+                 "tag": "0.47.2",
                  "component": "devel",
                  "patches": ["python-meson-buildsys.patch"]},