Fix failing tests

Author: stephen-cox

tests/modules/localgov_forms_test/src/Driver/Database/FakeLts/Connection.php

@@ -4,6 +4,8 @@
 
 namespace Drupal\localgov_forms_test\Driver\Database\FakeLts;
 
+use Drupal\Core\Database\Transaction\TransactionManagerInterface;
+use Drupal\mysql\Driver\Database\mysql\TransactionManager;
 use Drupal\Tests\Core\Database\Stub\StubConnection;
 use Drupal\Tests\Core\Database\Stub\StubPDO;
 
@@ -29,4 +31,11 @@ public static function open(array &$connection_options = []) {
     return new StubPDO();
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  protected function driverTransactionManager(): TransactionManagerInterface {
+    return new TransactionManager($this);
+  }
+
 }