[gnome-sdk-images] Fix downloads

[Javier Jardón Cabezas <jjardon src gnome org>]

commit a00a7498ac804d3e064d03b6ad154c36d03415d0
Author: Valentin David <valentin david gmail com>
Date:   Mon Jun 25 08:49:40 2018 +0000

    Fix downloads

 org.gnome.Sdk.json.in | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)
---
diff --git a/org.gnome.Sdk.json.in b/org.gnome.Sdk.json.in
index f9fd10c..76ebc04 100644
--- a/org.gnome.Sdk.json.in
+++ b/org.gnome.Sdk.json.in
@@ -473,7 +473,8 @@
             "sources": [
                 {
                     "type": "git",
-                    "url": "https://git.xiph.org/opus.git";
+                    "url": "https://git.xiph.org/opus.git";,
+                   "disable-shallow-clone": true
                 }
             ]
         },
@@ -623,7 +624,8 @@
             "sources": [
                 {
                     "type": "git",
-                    "url": "http://git.0pointer.net/clone/libcanberra.git"; /* No HTTPS unfortunately */
+                    "url": "http://git.0pointer.net/clone/libcanberra.git";, /* No HTTPS unfortunately */
+                   "disable-shallow-clone": true
                 }
             ]
         },
@@ -796,7 +798,7 @@
             "sources": [
                 {
                     "type": "archive",
-                    "url": "http://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre2-10.22.tar.gz";,
+                    "url": "https://downloads.sourceforge.net/project/pcre/pcre2/10.22/pcre2-10.22.tar.gz";,
                     "sha256": "7627f93f2763ee6e11ac58558d8cfbf29e1070757b45571c0ba30ce9e096505c"
                 }
             ]