`longblob` rather than `mediumblob`

common/src/main/resources/database/mysql_schema.sql

@@ -15,7 +15,7 @@ CREATE TABLE IF NOT EXISTS `%user_data_table%`
     `timestamp`    datetime    NOT NULL,
     `save_cause`   varchar(32) NOT NULL,
     `pinned`       boolean     NOT NULL DEFAULT FALSE,
-    `data`         mediumblob  NOT NULL,
+    `data`         longblob    NOT NULL,
     PRIMARY KEY (`version_uuid`, `player_uuid`),
     FOREIGN KEY (`player_uuid`) REFERENCES `%users_table%` (`uuid`) ON DELETE CASCADE
 );