[libhandy] swipe-tracker: Fix a memory leak

[Alexander Mikhaylenko <alexm src gnome org>]

commit 79604659605301a1070b1375256392f1a7b943dd
Author: Mohammed Sadiq <sadiq sadiqpk org>
Date:   Thu Sep 23 09:37:12 2021 +0530

    swipe-tracker: Fix a memory leak

 src/hdy-swipe-tracker.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/hdy-swipe-tracker.c b/src/hdy-swipe-tracker.c
index 1a2ff1dc..e98d63b2 100644
--- a/src/hdy-swipe-tracker.c
+++ b/src/hdy-swipe-tracker.c
@@ -934,6 +934,7 @@ hdy_swipe_tracker_dispose (GObject *object)
 
   g_object_set_data (G_OBJECT (self->swipeable), "captured-event-handler", NULL);
 
+  g_clear_pointer (&self->event_history, g_array_unref);
   g_clear_object (&self->touch_gesture);
   g_clear_object (&self->swipeable);