Merge branch '3417066-drop-symfony-phpunit-bridge' into '11.x'

composer.json

composer.lock

composer/Metapackage/CoreRecommended/composer.json

composer/Metapackage/DevDependencies/composer.json

composer/Metapackage/PinnedDevDependencies/composer.json

composer/Plugin/VendorHardening/Config.php

core/.deprecation-ignore.txt

core/.phpstan-baseline.php

core/lib/Drupal/Core/Database/Database.php

core/lib/Drupal/Core/Test/PhpUnitTestRunner.php

core/lib/Drupal/Core/Test/TestDiscovery.php

core/lib/Drupal/Core/Test/TestRunnerKernel.php

core/lib/Drupal/Core/Test/TestSetupTrait.php

core/lib/Drupal/Core/Utility/Error.php

...ckeditor5/tests/src/Kernel/CKEditor5PluginManagerTest.php

.../datetime/tests/src/Kernel/Views/ArgumentDateTimeTest.php

...modules/help/tests/src/Functional/HelpTopicSearchTest.php

...s/language/tests/src/Functional/LanguageSwitchingTest.php

...s/language/tests/src/Unit/process/LanguageDomainsTest.php

.../modules/layout_discovery/tests/src/Kernel/LayoutTest.php