This commit is part of the websocket integration in Odoo. The longpolling port does not make sense anymore: longpolling has been dropped. This commit deprecate the `--longpolling-port` option and replace it by the `--gevent-port` option. closes odoo/odoo#75510 Related: odoo/enterprise#23184 Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>