Merge tag '2.2.5'

Hotfix release 2.2.5

Change the parameter from kernel.project_dirt to kernel.project_dir.
This should fix the error 'The parameter "kernel.project_dirt" must be defined.'

src/Helper/ToolboxFile.php

@@ -247,7 +247,7 @@ public function __construct(
                 E_USER_DEPRECATED
             );
             // @codingStandardsIgnoreEnd
-            $this->rootDir = System::getContainer()->getParameter('kernel.project_dirt');
+            $this->rootDir = System::getContainer()->getParameter('kernel.project_dir');
         }
 
         if (null === ($this->filesContext = $filesContext)) {