[11.x] Fixes Symfony Console 7.3 deprecations on closure command

src/Illuminate/Foundation/Console/ClosureCommand.php

@@ -25,6 +25,13 @@ class ClosureCommand extends Command
      */
     protected $callback;
 
+    /**
+     * The console command description.
+     *
+     * @var string
+     */
+    protected $description = '';
+
     /**
      * Create a new command instance.
      *

tests/Integration/Foundation/Console/ClosureCommandTest.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Illuminate\Tests\Integration\Foundation\Console;
+
+use Illuminate\Support\Facades\Artisan;
+use Orchestra\Testbench\TestCase;
+
+class ClosureCommandTest extends TestCase
+{
+    /** {@inheritDoc} */
+    #[\Override]
+    protected function defineEnvironment($app)
+    {
+        Artisan::command('inspire', function () {
+            $this->comment('We must ship. - Taylor Otwell');
+        })->purpose('Display an inspiring quote');
+    }
+
+    public function testItCanRunClosureCommand()
+    {
+        $this->artisan('inspire')->expectsOutput('We must ship. - Taylor Otwell');
+    }
+}