Issue #3407159 by longwave, quietone: [11.x] Add void returns for Symfony 7

core/lib/Drupal/Component/DependencyInjection/Container.php

...mponent/EventDispatcher/ContainerAwareEventDispatcher.php

core/lib/Drupal/Core/Command/DbCommandBase.php

core/lib/Drupal/Core/Command/DbDumpCommand.php

core/lib/Drupal/Core/Command/DbImportCommand.php

...pendencyInjection/Compiler/AuthenticationProviderPass.php

...Core/DependencyInjection/Compiler/BackendCompilerPass.php

...l/Core/DependencyInjection/Compiler/ProxyServicesPass.php

...l/Core/DependencyInjection/Compiler/StackedKernelPass.php

.../Core/DependencyInjection/Compiler/TaggedHandlersPass.php

.../lib/Drupal/Core/DependencyInjection/ContainerBuilder.php

core/lib/Drupal/Core/DrupalKernel.php

.../lib/Drupal/Core/Entity/EntityConstraintViolationList.php

...lugin/Validation/Constraint/BundleConstraintValidator.php

...n/Validation/Constraint/EntityTypeConstraintValidator.php

core/lib/Drupal/Core/Render/MetadataBubblingUrlGenerator.php

core/lib/Drupal/Core/Routing/AccessAwareRouter.php

core/lib/Drupal/Core/Routing/UrlGenerator.php

core/lib/Drupal/Core/Session/MetadataBag.php

core/lib/Drupal/Core/Session/SessionManager.php