ExtractTranslationCommand unlink() expects parameter 1 to be a valid path, object given

[TheRatG]

Q	A
Bundle version	1.5, master
Symfony version	4.4
PHP version	7.3

Expected behavior

Unlink translation file

Actual behavior

In Updater.php line 159:
                                                                 
  [TypeError]                                                    
  unlink() expects parameter 1 to be a valid path, object given 

Steps to reproduce

Run command translation:extract two times

./bin/console  --env=test translation:extract --config=app en --no-interaction
./bin/console  --env=test translation:extract --config=app en --no-interaction

[goetas]

fixed in #538