Add $defaultDescription property in console command to support lazy l…

…oading

src/Command/Hello.php

@@ -12,17 +12,13 @@
 final class Hello extends Command
 {
     protected static $defaultName = 'hello';
+    protected static $defaultDescription = 'An example command';
 
     public function __construct()
     {
         parent::__construct();
     }
 
-    public function configure(): void
-    {
-        $this->setDescription('An example command');
-    }
-
     protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $output->writeln('Hello!');