fix: fix migration

Signed-off-by: Marcel Klehr <mklehr@gmx.net>

core/Migrations/Version30000Date20240429122720.php

@@ -79,7 +79,7 @@ class Version30000Date20240429122720 extends SimpleMigrationStep {
 				'length' => 32,
 				'default' => '',
 			]);
-			$table->addColumn('identifier', Types::STRING, [
+			$table->addColumn('custom_id', Types::STRING, [
 				'notnull' => false,
 				'length' => 255,
 				'default' => '',
@@ -105,7 +105,7 @@ class Version30000Date20240429122720 extends SimpleMigrationStep {
 			$table->setPrimaryKey(['id'], 'taskp_tasks_id_index');
 			$table->addIndex(['status', 'type'], 'taskp_tasks_status_type');
 			$table->addIndex(['last_updated'], 'taskp_tasks_updated');
-			$table->addIndex(['user_id', 'app_id', 'identifier'], 'taskp_tasks_uid_appid_ident');
+			$table->addIndex(['user_id', 'app_id', 'custom_id'], 'taskp_tasks_uid_appid_ident');
 
 			return $schema;
 		}