[DI] disable preload.php on the CLI

Author: nicolas-grekas

Dumper/PhpDumper.php

@@ -319,6 +319,10 @@ public function dump(array $options = [])
 
 use Symfony\Component\DependencyInjection\Dumper\Preloader;
 
+if (in_array(PHP_SAPI, ['cli', 'phpdbg'], true)) {
+    return;
+}
+
 require $autoloadFile;
 require __DIR__.'/Container{$hash}/{$options['class']}.php';