Create log dir only when not exists

Author: yann-eugone

tests/symfony/src/Kernel.php

@@ -43,7 +43,9 @@ public function getProjectDir(): string
     public function getLogDir(): string
     {
         $logDir = parent::getLogDir();
-        \mkdir($logDir);
+        if (!\is_dir($logDir)) {
+            \mkdir($logDir, recursive: true);
+        }
 
         return $logDir;
     }