[FIX] website: changing menu sequence clear menu cache

As of 02e01dce the website menu is prefetched for the user and saved
in cache.

If the sequence of a menu is changed (eg. with the "Edit Menu" modal on
website), the cache was not cleared so it seemed like this did not work.

With this changeset, changing a menu sequence will clear ormcache.

opw-2244908
closes #50683

Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>

addons/website/models/website_menu.py

@@ -94,7 +94,7 @@ class Menu(models.Model):
 
     def write(self, values):
         res = super().write(values)
-        if 'website_id' in values or 'group_ids' in values:
+        if 'website_id' in values or 'group_ids' in values or 'sequence' in values:
             self.clear_caches()
         return res