laravel-app/app/Console/Commands/PublishScheduledPosts.php

<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;

use App\Models\Post;

class PublishScheduledPosts extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'blog:publish-scheduled';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Публикация отложенных статей';

    /**
     * Execute the console command.
     */
    public function handle()
    {
        //
        $count = Post::where('is_published', false)
        ->whereNotNull('scheduled_at')
        ->where('scheduled_at', '<=', now())
        ->update([
            'is_published' => true, 
            'published_at' => now()
        ]);

        $this->info("Опубликовано статей: " . $count);
    }
}