home/specialisations: fix wallpaper hash

Author: fufexan

home/specialisations.nix

@@ -3,7 +3,7 @@
     wallpaper =
       let
         url = "https://images.unsplash.com/photo-1529528744093-6f8abeee511d?ixlib=rb-4.0.3&q=85&fm=jpg&crop=fit&cs=srgb&w=2560";
-        sha256 = "sha256-G+Fjy3ooUzHI5V8KN5Zb1JS51ktIFsur1N5F+n6FJaM=";
+        sha256 = "sha256-JD4cHpKJS8gIee+APcFp54+o6IdwPZXOU6RHTf1hkY8=";
         ext = "jpg";
       in
       builtins.fetchurl {