[gnome-photos] flatpak: Update LibRaw to 0.18.13

[Debarshi Ray <debarshir src gnome org>]

commit fc11fc0f834341a3294f94e5db6077c1b61913c4
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Jun 29 16:49:28 2018 +0200

    flatpak: Update LibRaw to 0.18.13

 flatpak/org.gnome.Photos.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/flatpak/org.gnome.Photos.json b/flatpak/org.gnome.Photos.json
index c71a18f2..24bf4ce7 100644
--- a/flatpak/org.gnome.Photos.json
+++ b/flatpak/org.gnome.Photos.json
@@ -149,8 +149,8 @@
             "sources": [
                 {
                     "type": "archive",
-                    "url": "https://www.libraw.org/data/LibRaw-0.18.8.tar.gz";,
-                    "sha256": "56aca4fd97038923d57d2d17d90aa11d827f1f3d3f1d97e9f5a0d52ff87420e2"
+                    "url": "https://www.libraw.org/data/LibRaw-0.18.13.tar.gz";,
+                    "sha256": "cb1f9d0d1fabc8967d501d95c05d2b53d97a2b917345c66553b1abbea06757ca"
                 },
                 {
                     "type": "patch",