migration symfony 5 4 (#300)

* symfony 5.4 (diff dev)

* symfony 5.4 (working)

* symfony 5.4 (update autoload)

* symfony 5.4 (remove swiftmailer mailer implementation)

* symfony 5.4 (php doc and split Global accessor class)


### Impacted packages:

composer require php:">=7.2.5 <8.0.0" symfony/console:5.4.* symfony/dotenv:5.4.* symfony/framework-bundle:5.4.* symfony/twig-bundle:5.4.* symfony/yaml:5.4.* --update-with-dependencies

composer require symfony/stopwatch:5.4.* symfony/web-profiler-bundle:5.4.* --dev --update-with-dependencies

lib/symfony/framework-bundle/Resources/config/lock.php

@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\DependencyInjection\Loader\Configurator;
+
+use Symfony\Component\Lock\LockFactory;
+use Symfony\Component\Lock\Store\CombinedStore;
+use Symfony\Component\Lock\Strategy\ConsensusStrategy;
+
+return static function (ContainerConfigurator $container) {
+    $container->services()
+        ->set('lock.store.combined.abstract', CombinedStore::class)->abstract()
+            ->args([abstract_arg('List of stores'), service('lock.strategy.majority')])
+
+        ->set('lock.strategy.majority', ConsensusStrategy::class)
+
+        ->set('lock.factory.abstract', LockFactory::class)->abstract()
+            ->args([abstract_arg('Store')])
+            ->call('setLogger', [service('logger')->ignoreOnInvalid()])
+            ->tag('monolog.logger', ['channel' => 'lock'])
+    ;
+};