Update dependency phpstan/phpstan to ^2.1.56 (#1110)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Filippo Tessarotto <zoeslam@gmail.com>

Author: renovate[bot]

composer.json

@@ -45,19 +45,19 @@
         "phpunit/php-timer": "^9",
         "phpunit/phpunit": "^13.1.12",
         "sebastian/environment": "^9.3.2",
-        "symfony/console": "^7.4.8 || ^8.0.9",
-        "symfony/process": "^7.4.8 || ^8.0.8"
+        "symfony/console": "^7.4.8 || ^8.0.11",
+        "symfony/process": "^7.4.8 || ^8.0.11"
     },
     "require-dev": {
         "ext-pcntl": "*",
         "ext-pcov": "*",
         "ext-posix": "*",
         "doctrine/coding-standard": "^14.0.0",
-        "phpstan/phpstan": "^2.1.55",
+        "phpstan/phpstan": "^2.1.56",
         "phpstan/phpstan-deprecation-rules": "^2.0.4",
         "phpstan/phpstan-phpunit": "^2.0.16",
         "phpstan/phpstan-strict-rules": "^2.0.11",
-        "symfony/filesystem": "^7.4.8 || ^8.0.9"
+        "symfony/filesystem": "^7.4.8 || ^8.0.11"
     },
     "autoload": {
         "psr-4": {

src/WrapperRunner/WrapperRunner.php

@@ -121,9 +121,7 @@ public function __construct(
 
     public function run(): int
     {
-        $directory = dirname(__DIR__);
-        assert($directory !== '');
-        ExcludeList::addDirectory($directory);
+        ExcludeList::addDirectory(dirname(__DIR__));
         $suiteLoader = new SuiteLoader(
             $this->options,
             $this->output,