Fixes for compatibility with Metatag 2.2.1

I made a first pass at this because updating metatag to the latest dev release (April 1) caused a WSOD because I also have schema_metatag installed. My MR clears the WSOD but we should not need to change a constructor for a minor release.

That's fine, but I needed to use the dev version of schema_metatag with the dev version of metatag; if I use the 3.0.4 version of schema_metatag with dev version of metatag, I get a WSOD:

Fatal error: Type of Drupal\schema_metatag\Plugin\metatag\Tag\SchemaNameBase::$configFactory must be omitted to match the parent definition in class Drupal\metatag\Plugin\metatag\Tag\MetaNameBase in /var/www/html/web/modules/contrib/schema_metatag/src/Plugin/metatag/Tag/SchemaNameBase.php on line 16
Stack trace: #0 /var/www/html/vendor/composer/ClassLoader.php(576): include() #1 /var/www/html/vendor/composer/ClassLoader.php(427): {closure:Composer\Autoload\ClassLoader::initializeIncludeClosure():575}() #2 /var/www/html/web/modules/contrib/schema_metatag/schema_web_site/src/Plugin/metatag/Tag/SchemaWebSiteType.php(31): Composer\Autoload\ClassLoader->loadClass() #3 /var/www/html/vendor/composer/ClassLoader.php(576): include('...') #4 /var/www/html/vendor/composer/ClassLoader.php(427): {closure:Composer\Autoload\ClassLoader::initializeIncludeClosure():575}() #5 [internal function]: Composer\Autoload\ClassLoader->loadClass() #6 /var/www/html/web/core/lib/Drupal/Component/Plugin/Factory/DefaultFactory.php(96): class_exists() #7 /var/www/html/web/core/lib/Drupal/Core/Plugin/Factory/ContainerFactory.php(17): Drupal\Component\Plugin\Factory\DefaultFactory::getPluginClass() #8 /var/www/html/web/core/lib/Drupal/Component/Plugin/PluginManagerBase.php(85): Drupal\Core\Plugin\Factory\ContainerFactory->createInstance() #9 /var/www/html/web/modules/contrib/metatag/src/MetatagManager.php(665): Drupal\Component\Plugin\PluginManagerBase->createInstance() #10 /var/www/html/web/modules/contrib/metatag/src/MetatagManager.php(607): Drupal\metatag\MetatagManager->generateRawElements() #11 /var/www/html/web/modules/contrib/metatag/metatag.module(380): Drupal\metatag\MetatagManager->generateElements() #12 /var/www/html/web/modules/contrib/metatag/metatag.module(308): metatag_get_tags_from_route() #13 /var/www/html/web/core/lib/Drupal/Core/Extension/ModuleHandler.php(354): metatag_preprocess_html() #14 /var/www/html/web/core/lib/Drupal/Core/Theme/ThemeManager.php(311): Drupal\Core\Extension\ModuleHandler->invoke() #15 /var/www/html/web/core/lib/Drupal/Core/Theme/ThemeManager.php(340): Drupal\Core\Theme\ThemeManager->{closure:Drupal\Core\Theme\ThemeManager::render():293}() #16 /var/www/html/web/core/lib/Drupal/Core/Render/Renderer.php(500): Drupal\Core\Theme\ThemeManager->render() #17 /var/www/html/web/core/lib/Drupal/Core/Render/Renderer.php(253): Drupal\Core\Render\Renderer->doRender() #18 /var/www/html/web/core/lib/Drupal/Core/Render/Renderer.php(143): Drupal\Core\Render\Renderer->doRenderRoot() #19 /var/www/html/web/core/lib/Drupal/Core/Render/Renderer.php(634): Drupal\Core\Render\Renderer->{closure:Drupal\Core\Render\Renderer::renderInIsolation():142}() #20 [internal function]: Drupal\Core\Render\Renderer::{closure:Drupal\Core\Render\Renderer::executeInRenderContext():634}() #21 /var/www/html/web/core/lib/Drupal/Core/Render/Renderer.php(649): Fiber->resume() #22 /var/www/html/web/core/lib/Drupal/Core/Render/Renderer.php(142): Drupal\Core\Render\Renderer->executeInRenderContext() #23 /var/www/html/web/core/lib/Drupal/Core/Render/Renderer.php(113): Drupal\Core\Render\Renderer->renderInIsolation() #24 /var/www/html/web/core/lib/Drupal/Core/Render/BareHtmlPageRenderer.php(79): Drupal\Core\Render\Renderer->renderRoot() #25 /var/www/html/web/core/lib/Drupal/Core/ProxyClass/Render/BareHtmlPageRenderer.php(76): Drupal\Core\Render\BareHtmlPageRenderer->renderBarePage() #26 /var/www/html/web/core/includes/install.core.inc(1069): Drupal\Core\ProxyClass\Render\BareHtmlPageRenderer->renderBarePage() #27 /var/www/html/web/core/includes/install.core.inc(161): install_display_output() #28 /var/www/html/web/core/install.php(53): install_drupal() #29 {main}

So the next version of schema_metatag may need to require the next version of metatag.