TestScript.pm: Workaround Test::Perl::Critic test

This worksaround

  not ok 55 - Test::Perl::Critic for "lib/perl5/QtQA/TestScript.pm"

Change-Id: I36c22d739ed1eebe064c4918b6679b59f58c20a7
Reviewed-by: Janne Anttila <janne.anttila@digia.com>