[gnome-continuous] Use the new stable Meson tag

[Emmanuele Bassi <ebassi src gnome org>]

commit 2e4d0d29d8f1c1b2c541748c3d562d520afbaaaf
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon Jul 9 12:46:51 2018 +0100

    Use the new stable Meson tag
    
    Modules have started depending on the new stable version.

 manifest.json | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/manifest.json b/manifest.json
index c8aa2ca..d07e82e 100644
--- a/manifest.json
+++ b/manifest.json
@@ -66,8 +66,7 @@
                  "noarch": true},
 
                 {"src": "git:https://github.com/mesonbuild/meson.git";,
-                 "tag": "8d8b1b02075e81a0c775df8ea828d8e2a57876e8",
-                 "tag-reason": "Relies on pkexec, which fails",
+                 "tag": "0.47.0",
                  "component": "devel",
                  "patches": ["python-meson-buildsys.patch"]},