fix: up content rating limit for MySQL/MariaDB

- Increased the column size for content-ratings for MySQL/MariaDB 4x, since some TMDB shows/movies can cross the previous _low_ size at _just_ 128 characters _when downloading all content ratings_ (which is now **not** done by default per [2f50967](2f50967)!)

Fixes #1180

Author: revam

Shoko.Server/Databases/MySQL.cs

@@ -27,7 +27,7 @@ namespace Shoko.Server.Databases;
 public class MySQL : BaseDatabase<MySqlConnection>
 {
     public override string Name { get; } = "MySQL";
-    public override int RequiredVersion { get; } = 137;
+    public override int RequiredVersion { get; } = 138;
 
     private List<DatabaseCommand> createVersionTable = new()
     {
@@ -835,6 +835,8 @@ public class MySQL : BaseDatabase<MySqlConnection>
         new(136, 9, "DROP TABLE IF EXISTS `AniDB_Seiyuu`"),
         new(136, 10, "DROP TABLE IF EXISTS `AniDB_Character_Seiyuu`"),
         new(137, 1, "ALTER TABLE `TMDB_Show` ADD COLUMN `PreferredAlternateOrderingID`  VARCHAR(64) CHARACTER SET UTF8 NULL DEFAULT NULL;"),
+        new(138, 1, "ALTER TABLE `TMDB_Show` CHANGE COLUMN `ContentRatings` VARCHAR(512) CHARACTER SET UTF8 NOT NULL"),
+        new(138, 2, "ALTER TABLE `TMDB_Movie` CHANGE COLUMN `ContentRatings` VARCHAR(512) CHARACTER SET UTF8 NOT NULL"),
     };
 
     private DatabaseCommand linuxTableVersionsFix = new("RENAME TABLE versions TO Versions;");