backup_restore version 2.0 is not compatible with symfony/process version 4.1.0

[tjeske2017]

Tested in a TYPO3 8.7.15 installation
I just run
vender/bin/typo3cms backup:create
and get the following error:

[ Error ]
Class 'Symfony\Component\Process\ProcessBuilder' not found

Exception trace:
#0 ()
typo3conf/ext/backup_restore/Classes/Command/BackupCommandController.php:577
#1 BeechIt\BackupRestore\Command\BackupCommandController->dumpDB()
typo3conf/ext/backup_restore/Classes/Command/BackupCommandController.php:96
#2 BeechIt\BackupRestore\Command\BackupCommandController->createCommand()
vendor/helhum/typo3-console/Classes/Console/Mvc/Controller/CommandController.php:263
#3 Helhum\Typo3Console\Mvc\Controller\CommandController->callCommandMethod()
vendor/helhum/typo3-console/Classes/Console/Mvc/Controller/CommandController.php:154
#4 Helhum\Typo3Console\Mvc\Controller\CommandController->processRequest()
typo3/sysext/extbase/Classes/Mvc/Dispatcher.php:85
#5 TYPO3\CMS\Extbase\Mvc\Dispatcher->dispatch()
vendor/helhum/typo3-console/Classes/Console/Mvc/Cli/RequestHandler.php:45
#6 Helhum\Typo3Console\Mvc\Cli\RequestHandler->handle()
vendor/helhum/typo3-console/Classes/Console/Mvc/Cli/Symfony/Command/CommandControllerCommand.php:162
#7 Helhum\Typo3Console\Mvc\Cli\Symfony\Command\CommandControllerCommand->execute()
vendor/symfony/console/Command/Command.php:251
#8 Symfony\Component\Console\Command\Command->run()
vendor/symfony/console/Application.php:886
#9 Symfony\Component\Console\Application->doRunCommand()
vendor/symfony/console/Application.php:262
#10 Symfony\Component\Console\Application->doRun()
vendor/symfony/console/Application.php:145
#11 Symfony\Component\Console\Application->run()
vendor/helhum/typo3-console/Classes/Console/Core/Kernel.php:162
#12 Helhum\Typo3Console\Core\Kernel->handle()
vendor/helhum/typo3-console/Scripts/typo3-console.php:19
#13 {closure}()
vendor/helhum/typo3-console/Scripts/typo3-console.php:21
#14 require()
vendor/helhum/typo3-console/typo3cms:18

[fsaris]

How did you install the extension? Composer or zip upload?

[tjeske2017]

Composer require:
"beechit/backup-restore": "^2.0"