[libhandy] avatar: Fix leaked HdyAvatarIcon

[Adrien Plazas <aplazas src gnome org>]

commit 41794ab2c10cc8c248487fbc7585ed8e6bceb03e
Author: Julian Sparber <julian sparber net>
Date:   Sat Feb 13 13:50:56 2021 +0100

    avatar: Fix leaked HdyAvatarIcon

 src/hdy-avatar.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/hdy-avatar.c b/src/hdy-avatar.c
index 63eafa6e..63786c14 100644
--- a/src/hdy-avatar.c
+++ b/src/hdy-avatar.c
@@ -621,6 +621,7 @@ hdy_avatar_dispose (GObject *object)
 
   g_cancellable_cancel (self->cancellable);
   g_clear_object (&self->icon);
+  g_clear_object (&self->load_func_icon);
 
   G_OBJECT_CLASS (hdy_avatar_parent_class)->dispose (object);
 }