Fix path for Windows

tests/modules/core/lib/Storage/SQLPermanentStorageTest.php

@@ -35,7 +35,7 @@ class SQLPermanentStorageTest extends TestCase
      */
     public static function tearDownAfterClass(): void
     {
-        unlink(sys_get_temp_dir() . '/sqllite/test.sqlite');
+        unlink(sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'sqllite' . DIRECTORY_SEPARATOR . 'test.sqlite');
     }