test(db): chore - add imports to MigrationServiceTest

Signed-off-by: Josh <josh.t.richards@gmail.com>

Author: joshtrichards

tests/lib/DB/MigrationServiceTest.php

@@ -22,7 +22,9 @@
 use OCP\App\AppPathNotFoundException;
 use OCP\IDBConnection;
 use OCP\Migration\IMigrationStep;
+use OCP\Server;
 use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\Attributes\Group;
 use PHPUnit\Framework\Attributes\TestWith;
 use PHPUnit\Framework\MockObject\MockObject;
 use Psr\Log\LoggerInterface;