removed symfony 4.4 deprecations

Command/DriverLockCommand.php

@@ -5,18 +5,18 @@
 use Lexik\Bundle\MaintenanceBundle\Drivers\AbstractDriver;
 use Lexik\Bundle\MaintenanceBundle\Drivers\DriverTtlInterface;
 
+use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
-use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
 
 /**
  * Create a lock action
  *
  * @package LexikMaintenanceBundle
  * @author  Gilles Gauthier <[email protected]>
  */
-class DriverLockCommand extends ContainerAwareCommand
+class DriverLockCommand extends Command
 {
     protected $ttl;
 

Command/DriverUnlockCommand.php

@@ -2,17 +2,17 @@
 
 namespace Lexik\Bundle\MaintenanceBundle\Command;
 
+use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
-use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
 
 /**
  * Create an unlock action
  *
  * @package LexikMaintenanceBundle
  * @author  Gilles Gauthier <[email protected]>
  */
-class DriverUnlockCommand extends ContainerAwareCommand
+class DriverUnlockCommand extends Command
 {
     /**
      * {@inheritdoc}

DependencyInjection/Configuration.php

@@ -20,8 +20,8 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode = $treeBuilder->root('lexik_maintenance');
+        $treeBuilder = new TreeBuilder('lexik_maintenance');
+        $rootNode = $treeBuilder->getRootNode();
 
         $rootNode
             ->addDefaultsIfNotSet()