[gnome-continuous] Bump up libarchive version and install xz-utils

[Răzvan-Mihai Chițu <razvanchitu src gnome org>]

commit d543e05e311af0702c815a5e4aad1c8db4b9f0c5
Author: Razvan Chitu <razvan ch95 gmail com>
Date:   Fri Sep 2 11:41:41 2016 +0300

    Bump up libarchive version and install xz-utils
    
    As mentioned in the previous commit, libarchive 3.2.X requires an updated
    version of liblzma, so the xz-utils package should be installed too.

 manifest.json |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/manifest.json b/manifest.json
index 39ad0ba..e35994c 100644
--- a/manifest.json
+++ b/manifest.json
@@ -492,10 +492,14 @@
                  "name": "ghostscript",
                  "checksum": "913fc974433238ffd4e0549ce11ba2a3360d1d159cf5c3b988d72a77acb74d04"},
 
+                {"src": "tarball:http://tukaani.org/xz/xz-5.2.2.tar.gz";,
+                 "name": "xz-utils",
+                 "checksum": "73df4d5d34f0468bd57d09f2d8af363e95ed6cc3a4a86129d2f2c366259902a2"},
+
                 {"src": "git:https://github.com/libarchive/libarchive.git";,
                 "component": "minimal",
                 "config-opts": ["--without-lzo2"],
-                "tag": "v3.1.2",
+                "tag": "v3.2.0",
                 "patches": ["libarchive-autogen.patch"]},
 
                 {"src": "fd-poppler:poppler",