[gnome-continuous] Update gcab module

[Emmanuele Bassi <ebassi src gnome org>]

commit 49c706bdc58652bf593a9f8ccfc3050800f2d486
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Dec 14 16:35:35 2017 +0000

    Update gcab module
    
    Upstream moved to Meson.

 manifest.json |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/manifest.json b/manifest.json
index a445148..bb45cbd 100644
--- a/manifest.json
+++ b/manifest.json
@@ -944,8 +944,7 @@
                                 "--enable-installed-tests"]},
 
                {"src": "gnome:gcab",
-                 "patches": ["gcab-no-parallel.patch"],
-                "config-opts": ["--disable-silent-rules", "--disable-static", "--enable-fast-install"]},
+                "config-opts": ["-Ddocs=false"]},
 
                {"src": "git:git://github.com/hughsie/appstream-glib.git",
                 "config-opts": ["-Denable-dep11=false",