[ticket/11668] Run lint test at the end of the test suite

The lint test is very slow. Running it at the end should speed up the development cycle.

PHPBB3-11668
Merge remote-tracking branch 'remotes/igorw/ticket/11668' into develop-olympus

# By Igor Wiedler
# Via Igor Wiedler
* remotes/igorw/ticket/11668:
  [ticket/11668] Run lint test at the end of the test suite