Update 2 files

• /tests/src/Unit/Query/SelectTest.php
• /src/Query/Select.php

Closes #3479470

src/Query/Select.php

@@ -512,7 +512,7 @@ class Select {
     if ($order_by = $this->getObjectItem('order_by')) {
       foreach ($order_by as $sort) {
         $stmt = $stmt->orderBy(function (array $a, array $b) use ($sort): int {
-          $direction = $sort->direction;
+          $direction = strtoupper($sort->direction);
           return match ($direction) {
             self::DIRECTION_ASC => strnatcasecmp($a[$sort->column] ?? '', $b[$sort->column] ?? ''),
             self::DIRECTION_DESC => -strnatcasecmp($a[$sort->column] ?? '', $b[$sort->column] ?? ''),