add justifyLastLine for test

Author: YoheiZuho

tests/PhpSpreadsheetTests/Writer/Xlsx/Issue3443Test.php

@@ -37,6 +37,7 @@ public function testNonDefaultAlign(): void
         $rsheet = $reloadedSpreadsheet->getActiveSheet();
         $expected1 = [
             'horizontal' => 'center',
+            'justifyLastLine' => false,
             'indent' => 0,
             'readOrder' => 0,
             'shrinkToFit' => false,
@@ -78,6 +79,7 @@ public function testDefaultAlign(): void
         $rsheet = $reloadedSpreadsheet->getActiveSheet();
         $expected1 = [
             'horizontal' => 'general',
+            'justifyLastLine' => false,
             'indent' => 0,
             'readOrder' => 0,
             'shrinkToFit' => false,