Issue #3502238: Transition to 2.x

Closes #3502238

modules/symfony_mailer_bc/symfony_mailer_bc.info.yml

-name: Drupal Symfony Mailer Override
-type: module
-description: 'Overrides email building for key core and contrib modules, improving features and integration with Symfony Mailer.'
-core_version_requirement: ^10.3 || ^11
-package: Mail
-lifecycle: deprecated
-lifecycle_link: 'https://www.drupal.org/project/symfony_mailer/issues/3355626'