Fix failing database migration

[michalwitwicki]

When running ./vendor/bin/sail artisan migrate migration fails on:

2024_04_09_184714_add_download_name_to_round_maps .................................... 2ms FAIL

  Illuminate\Database\QueryException

  SQLSTATE[42S21]: Column already exists: 1060 Duplicate column name 'download_name' (Connection: mysql, SQL: alter table `round_maps` add `download_name` varchar(255) not null default 'map.pk3', add `external` tinyint(1) not null default '0')

  at vendor/laravel/framework/src/Illuminate/Database/Connection.php:822
    818▕                     $this->getName(), $query, $this->prepareBindings($bindings), $e
    819▕                 );
    820▕             }
    821▕
  ➜ 822▕             throw new QueryException(
    823▕                 $this->getName(), $query, $this->prepareBindings($bindings), $e
    824▕             );
    825▕         }
    826▕     }

      +9 vendor frames

  10  database/migrations/2024_04_09_184714_add_download_name_to_round_maps.php:14
      Illuminate\Support\Facades\Facade::__callStatic()
      +24 vendor frames

  35  artisan:35
      Illuminate\Foundation\Console\Kernel::handle()

Expected result: Whole migration process should finish without fails.