[gnome-builder] flatpak: bump oldest default visible version to 3.26

[Christian Hergert <chergert src gnome org>]

commit e068cdadf39e439dc1817794f9936ac423498b5d
Author: Christian Hergert <chergert redhat com>
Date:   Sun Sep 24 21:16:49 2017 -0700

    flatpak: bump oldest default visible version to 3.26
    
    We only show GNOME versions >= this min version. We can reduce
    this to current version + master, since we don't want to
    encourage people to write new applications against older
    runtimes.

 .../flatpak/gbp-flatpak-preferences-addin.c        |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/plugins/flatpak/gbp-flatpak-preferences-addin.c 
b/src/plugins/flatpak/gbp-flatpak-preferences-addin.c
index bdd66b0..98d0c1b 100644
--- a/src/plugins/flatpak/gbp-flatpak-preferences-addin.c
+++ b/src/plugins/flatpak/gbp-flatpak-preferences-addin.c
@@ -17,7 +17,7 @@
  */
 
 #define G_LOG_DOMAIN "gbp-flatpak-preferences-addin"
-#define MIN_GNOME_VERSION "3.22"
+#define MIN_GNOME_VERSION "3.26"
 
 #include <flatpak.h>
 #include <glib/gi18n.h>