[gtksourceview] subprojects: fix branch for glib

[Christian Hergert <chergert src gnome org>]

commit 811738320ae90d8b5e7560578c3f368e934a6d4f
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jul 28 23:02:35 2021 -0700

    subprojects: fix branch for glib

 subprojects/glib.wrap | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/subprojects/glib.wrap b/subprojects/glib.wrap
index 621532e3..c0ad3ee9 100644
--- a/subprojects/glib.wrap
+++ b/subprojects/glib.wrap
@@ -2,7 +2,7 @@
 directory=glib
 url=https://gitlab.gnome.org/GNOME/glib.git
 push-url=ssh://git gitlab gnome org:GNOME/glib.git
-revision=master
+revision=main
 depth=1
 
 [provide]