[FIX] website_sale: Instruct crawlers to not sort

Follows odoo#35852. More useless crawls saved.

closes odoo#37990

Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/website_sale/views/templates.xml

@@ -269,7 +269,7 @@
                 </a>
                 <div class="dropdown-menu" role="menu">
                     <t t-foreach="website_sale_sortable" t-as="sortby">
-                        <a role="menuitem" t-att-href="keep('/shop', order=sortby[1])" class="dropdown-item">
+                        <a role="menuitem" rel="noindex,nofollow" t-att-href="keep('/shop', order=sortby[1])" class="dropdown-item">
                             <span t-raw="sortby[0]"/>
                         </a>
                     </t>