Merge branch '11.0'

Author: sebastianbergmann

build/scripts/phar-version.php

@@ -8,8 +8,8 @@
 \file_put_contents(
     __DIR__ . '/../tmp/phar/phpunit/Runner/Version.php',
     \str_replace(
-        'private static $pharVersion = \'\';',
-        'private static $pharVersion = \'' . $argv[1] . '\';',
+        'private static string $pharVersion = \'\';',
+        'private static string $pharVersion = \'' . $argv[1] . '\';',
         \file_get_contents(__DIR__ . '/../tmp/phar/phpunit/Runner/Version.php')
     ),
     \LOCK_EX