Consider using the `ee/db/fixtures/production/010_license.rb` seed file instead of custom `add_license` function
For a few months, we have a seed file that allows to seed an EE license directly: https://gitlab.com/gitlab-org/gitlab/blob/master/ee%2Fdb%2Ffixtures%2Fproduction%2F010_license.rb
We should leverage that instead of using our custom add_license function: https://gitlab.com/gitlab-org/gitlab/blob/7c13f24ed5dafbcd313d360ab893a687b665f1ce/scripts/review_apps/review-apps.sh#L279-308