[FIX] website_event_track: Unpublish canceled event

A canceled event track must be unpublished.

opw:2485928

closes odoo/odoo#68236

X-original-commit: c0aaf2412e586e038cf81646567268607e789f71
Signed-off-by: Simon Goffin (sig) <sig@openerp.com>

addons/website_event_track/models/event_track.py

@@ -354,6 +354,8 @@ class Track(models.Model):
     def _synchronize_with_stage(self, stage):
         if stage.is_done:
             self.is_published = True
+        elif stage.is_cancel:
+            self.is_published = False
 
     # ------------------------------------------------------------
     # MESSAGING