[ghex] ci: Update JSON file for GHex4 to point to master

[Logan Rathbone <larathbone src gnome org>]

commit b3c5c8758be5b4e8d0453f36cd2a3e2524701f25
Author: Logan Rathbone <poprocks gmail com>
Date:   Mon Dec 6 15:41:09 2021 -0500

    ci: Update JSON file for GHex4 to point to master

 org.gnome.GHex.Devel.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/org.gnome.GHex.Devel.json b/org.gnome.GHex.Devel.json
index 65060e7..3692243 100644
--- a/org.gnome.GHex.Devel.json
+++ b/org.gnome.GHex.Devel.json
@@ -4,7 +4,7 @@
     "runtime-version": "master",
     "sdk": "org.gnome.Sdk",
     "command": "ghex",
-    "branch": "gtk4-port",
+    "branch": "master",
     "finish-args": [
         /* X11 + XShm */
         "--share=ipc", "--socket=x11",