Fixed upgrade_20210530_logs.sql [ci skip]

Thanks to @RagnaWay

sql-files/upgrades/upgrade_20210530_logs.sql

@@ -1,3 +1,3 @@
 ALTER TABLE `picklog`
-	`enchantgrade` tinyint unsigned NOT NULL default '0'
+	ADD COLUMN `enchantgrade` tinyint unsigned NOT NULL default '0'
 ;