[seahorse] flatpak: Use fallback-x11 option

[Niels De Graef <nielsdg src gnome org>]

commit 621d3f1f614774ff302035b969c53bbc29dd5ab0
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Wed Sep 29 16:21:13 2021 +0200

    flatpak: Use fallback-x11 option
    
    Don't request X11 socket access unless absolutely necessary.

 build-aux/org.gnome.seahorse.ApplicationDevel.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/build-aux/org.gnome.seahorse.ApplicationDevel.json 
b/build-aux/org.gnome.seahorse.ApplicationDevel.json
index 9d0777b5..6933aca7 100644
--- a/build-aux/org.gnome.seahorse.ApplicationDevel.json
+++ b/build-aux/org.gnome.seahorse.ApplicationDevel.json
@@ -6,7 +6,7 @@
     "command": "seahorse",
     "finish-args": [
         /* X11 + XShm access */
-        "--share=ipc", "--socket=x11",
+        "--share=ipc", "--socket=fallback-x11",
         /* Wayland access */
         "--socket=wayland",
         "--device=dri",