[ticket/12693] Don't try to check the composer.phar file

PHPBB3-12693
Merge remote-tracking branch 'github-nicofuma/ticket/12693' into develop-ascraeus

* github-nicofuma/ticket/12693:
  [ticket/12693] Don't try to check the composer.phar file
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12693] Don't try to check the composer.phar file