[FIX] bus: websocket http raise sessionExpired

The session used to call this websocket route needs to have been
initiated with a call to /websocket/peek_notifications first.

closes odoo/odoo#100889

Signed-off-by: Julien Castiaux <juc@odoo.com>

addons/bus/controllers/websocket.py

@@ -49,6 +49,8 @@ class WebsocketController(Controller):
 
     @route('/websocket/update_bus_presence', type='json', auth='public', cors='*')
     def update_bus_presence(self, inactivity_period, im_status_ids_by_model):
+        if 'is_websocket_session' not in request.session:
+            raise SessionExpiredException()
         request.env['ir.websocket']._update_bus_presence(int(inactivity_period), im_status_ids_by_model)
         return {}