use mb_strlen() for symfony console patch

current progressbar in CI is no longer, mb_strlen() instead of strlen maybe needed.

see https://github.com/rectorphp/rector-src/actions/runs/5916863350/job/16044602401#step:10:11

Author: samsonasik

patches/symfony-console-helper-helper-php.patch

@@ -4,15 +4,15 @@
      public static function width(?string $string): int
      {
          $string ??= '';
-+        return \strlen($string);
++        return \mb_strlen($string);
 
          if (preg_match('//u', $string)) {
              return (new UnicodeString($string))->width(false);
 @@ -65,6 +66,7 @@
      public static function length(?string $string): int
      {
          $string ??= '';
-+        return \strlen($string);
++        return \mb_strlen($string);
 
          if (preg_match('//u', $string)) {
              return (new UnicodeString($string))->length();