Include license_finder in the bundle to be used by omnibus-gitlab
Required for omnibus-gitlab#6527 (closed). We do the same for gitlab in https://gitlab.com/gitlab-org/gitlab/blob/296654cd435d94cc9cbdb71b6adbf32670d2c5ea/Gemfile#L412-414
omnibus-gitlab counterpart: omnibus-gitlab!5745 (merged)
Edited by Balasankar 'Balu' C