castopod/app/Controllers/Migrate.php

<?php

namespace App\Controllers;

use \CodeIgniter\Controller;

class Migrate extends Controller
{

    public function index()
    {
        $migrate = \Config\Services::migrations();

        try {
            $migrate->latest();
        } catch (\Exception $e) {
            // Do something with the error here...
        }
    }
}