Fix install

Author: tsmr

sql/empty-3.0.0.sql

@@ -30,7 +30,7 @@ CREATE TABLE `glpi_plugin_addressing_pinginfos` (
   `items_id` int(11) NOT NULL default '0' COMMENT 'RELATION to various tables, according to itemtype (id)',
   `itemtype` varchar(100) collate utf8mb4_unicode_ci COMMENT 'see .class.php file',
   `ping_response` tinyint(1) NOT NULL default '0',
-  `ping_date` datetime DEFAULT NULL,
+  `ping_date` timestamp NULL DEFAULT NULL,
   PRIMARY KEY  (`id`),
   KEY `plugin_addressing_addressings_id` (`plugin_addressing_addressings_id`),
   KEY `ipname` (`ipname`),