chore: update console stub return types and docblocks (#493)

src/Commands/stubs/console.stub

@@ -1,30 +1,28 @@
 <?php
 
-namespace DummyNamespace;
+namespace {{ namespace }};
 
 use Illuminate\Console\Scheduling\Schedule;
 use LaravelZero\Framework\Commands\Command;
 
 class DummyClass extends Command
 {
     /**
-     * The signature of the command.
+     * The name and signature of the console command.
      *
      * @var string
      */
-    protected $signature = 'dummy:command';
+    protected $signature = '{{ command }}';
 
     /**
-     * The description of the command.
+     * The console command description.
      *
      * @var string
      */
     protected $description = 'Command description';
 
     /**
      * Execute the console command.
-     *
-     * @return mixed
      */
     public function handle()
     {
@@ -33,9 +31,6 @@ class DummyClass extends Command
 
     /**
      * Define the command's schedule.
-     *
-     * @param  \Illuminate\Console\Scheduling\Schedule  $schedule
-     * @return void
      */
     public function schedule(Schedule $schedule): void
     {