raise colspan value

Signed-off-by: tdruez <tdruez@aboutcode.org>

Author: tdruez

product_portfolio/templates/product_portfolio/tables/product_list_table.html

@@ -71,7 +71,7 @@
         </tr>
       {% endfor %}
     {% empty %}
-      <tr><td colspan="8">No results.</td></tr>
+      <tr><td colspan="9">No results.</td></tr>
     {% endfor %}
   </tbody>
 </table>