rector/config/set/symfony28.php

<?php

declare(strict_types=1);

use Rector\Generic\Rector\Argument\ArgumentDefaultValueReplacerRector;
use Rector\Symfony\Rector\Yaml\ParseFileRector;
use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;

return static function (ContainerConfigurator $containerConfigurator): void {
    $services = $containerConfigurator->services();

    $services->set(ParseFileRector::class);

    $services->set(ArgumentDefaultValueReplacerRector::class)
        ->call('configure', [[
            ArgumentDefaultValueReplacerRector::REPLACES_BY_METHOD_AND_TYPES => [
                'Symfony\Component\Routing\Generator\UrlGeneratorInterface' => [
                    'generate' => [
                        2 => [
                            [
                                # https://github.com/symfony/symfony/commit/912fc4de8fd6de1e5397be4a94d39091423e5188
                                'before' => true,
                                'after' => 'Symfony\Component\Routing\Generator\UrlGeneratorInterface::ABSOLUTE_URL',
                            ], [
                                'before' => false,
                                'after' => 'Symfony\Component\Routing\Generator\UrlGeneratorInterface::ABSOLUTE_PATH',
                            ], [
                                'before' => 'relative',
                                'after' => 'Symfony\Component\Routing\Generator\UrlGeneratorInterface::RELATIVE_PATH',
                            ], [
                                'before' => 'network',
                                'after' => 'Symfony\Component\Routing\Generator\UrlGeneratorInterface::NETWORK_PATH',
                            ],
                        ],
                    ],
                ],
            ],
        ]]);
};