[Database] Modify updated column in items table with proper default. (#3726)

* [Database] Modify `updated` column in `items` table with proper default.
From https://mariadb.com/kb/en/datetime/, `datetime` can be ZERO_DATE (`0000-00-00` with no time component) or between `1000-01-01 00:00:00.000000` and `9999-12-31 23:59:59.999999`. Currently, `updated` is the only datetime field that is `NOT NULL` and improperly defaulted to `0000-00-00 00:00:00`. This change matches existing structures of the other `datetime` columns.

* Update items_repository.h

* Update base_items_repository.h

* Revert "Update items_repository.h"

This reverts commit 3599f26818.

common/database/database_update_manifest.cpp

@@ -5029,8 +5029,8 @@ ALTER TABLE `spawnentry`
 ADD COLUMN `min_time` smallint(4) NOT NULL DEFAULT 0 AFTER `condition_value_filter`,
 ADD COLUMN `max_time` smallint(4) NOT NULL DEFAULT 0 AFTER `min_time`;
 )"
-  },
-  ManifestEntry{
+	},
+	ManifestEntry{
 		.version = 9243,
 		.description = "2023_11_27_starting_items_revamp.sql",
 		.check = "SHOW COLUMNS FROM `starting_items` LIKE 'race_list'",
@@ -5083,8 +5083,18 @@ INSERT INTO
 DROP TABLE `starting_items`;
 RENAME TABLE `starting_items_new` TO `starting_items`;
 )"
-
+	},
+	ManifestEntry{
+		.version = 9244,
+		.description = "2023_11_30_items_table_schema.sql",
+		.check = "SHOW COLUMNS FROM `items` LIKE 'updated'",
+		.condition = "contains",
+		.match = "NULL",
+		.sql = R"(
+ALTER TABLE `items` MODIFY COLUMN `updated` datetime NULL DEFAULT NULL;
+		)"
 	}
+
 // -- template; copy/paste this when you need to create a new entry
 //	ManifestEntry{
 //		.version = 9228,