Use a different project path for license_finder for JH

Test for https://gitlab.com/gitlab-org/gitlab/-/merge_requests/70192

license_finder passed at: https://gitlab.com/gitlab-jh/gitlab/-/jobs/1585642329

* bundle exec license_finder --decisions-file config/dependency_decisions.yml --project-path /builds/gitlab-org-forks/gitlab/jh (20s)