Tabeley-v0.0a/database/seeders/RoleSeeder.php

<?php

namespace Database\Seeders;

use Illuminate\Database\Seeder;
use App\Models\Role;

class RoleSeeder extends Seeder
{
    public function run(): void
    {
        $roles = ['customer', 'vendor', 'admin'];

        foreach ($roles as $role) {
            Role::firstOrCreate(['name' => $role]);
        }
    }
}