Not compatible anymore with Drupal 8

Problem/Motivation

The 2.0.1 release is not compatible anymore with Drupal 8, even 8.9.20.
This module uses the service "file_url_generator" but it was introduced in D9 only ...

Steps to reproduce

Le site Web a rencontré une erreur inattendue. Veuillez essayer de nouveau plus tard.

Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "file_url_generator". Did you mean this: "url_generator"? in Drupal\Component\DependencyInjection\Container->get() (line 153 of core/lib/Drupal/Component/DependencyInjection/Container.php).
Drupal\download_all_files\Plugin\Field\FieldFormatter\DownloadAllFormatter::create() (Line: 64)
Drupal\Core\Field\FormatterPluginManager->createInstance() (Line: 126)
Drupal\Core\Field\FormatterPluginManager->getInstance() (Line: 205)
Drupal\Core\Entity\Entity\EntityViewDisplay->getRenderer() (Line: 236)
Drupal\Core\Entity\Entity\EntityViewDisplay->buildMultiple() (Line: 351)
Drupal\Core\Entity\EntityViewBuilder->buildComponents() (Line: 24)
Drupal\node\NodeViewBuilder->buildComponents() (Line: 293)
Drupal\Core\Entity\EntityViewBuilder->buildMultiple() (Line: 250)
Drupal\Core\Entity\EntityViewBuilder->build()
call_user_func_array() (Line: 100)
Drupal\Core\Render\Renderer->doTrustedCallback() (Line: 781)
Drupal\Core\Render\Renderer->doCallback() (Line: 372)
Drupal\Core\Render\Renderer->doRender() (Line: 200)
Drupal\Core\Render\Renderer->render() (Line: 226)
Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 573)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 227)
Drupal\Core\Render\MainContent\HtmlRenderer->prepare() (Line: 117)
Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse() (Line: 90)
Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray()
call_user_func() (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch() (Line: 156)
Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 68)
Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 57)
Drupal\Core\StackMiddleware\Session->handle() (Line: 47)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass() (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 57)
Drupal\advban\AdvbanMiddleware->handle() (Line: 50)
Drupal\ban\BanMiddleware->handle() (Line: 47)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 52)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 23)
Stack\StackedHttpKernel->handle() (Line: 708)
Drupal\Core\DrupalKernel->handle() (Line: 19)

Proposed resolution

• Remove ^8 version from info file
• Rollback these modifications into a release compatible with D8, maybe only D8