[evince] flatpak: Bump gspell's version

[Germán Poo-Caamaño <gpoo src gnome org>]

commit dcba49da04822085face80d51bb1fc2d48a244ff
Author: Germán Poo-Caamaño <gpoo gnome org>
Date:   Thu Oct 11 12:08:17 2018 -0300

    flatpak: Bump gspell's version

 build-aux/flatpak/org.gnome.Evince.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/build-aux/flatpak/org.gnome.Evince.json b/build-aux/flatpak/org.gnome.Evince.json
index 4e886e26..20af54a0 100644
--- a/build-aux/flatpak/org.gnome.Evince.json
+++ b/build-aux/flatpak/org.gnome.Evince.json
@@ -164,8 +164,8 @@
             "sources": [
                 {
                     "type": "archive",
-                    "url": "https://download.gnome.org/sources/gspell/1.8/gspell-1.8.0.tar.xz";,
-                    "sha256": "1b7fc2c5b84ede43bc52d513f0601238af92b572a42b19363da6d067fb529345"
+                    "url": "https://download.gnome.org/sources/gspell/1.8/gspell-1.8.1.tar.xz";,
+                    "sha256": "819a1d23c7603000e73f5e738bdd284342e0cd345fb0c7650999c31ec741bbe5"
                 }
             ],
             "modules": [