Add a task to show the current feature flag status
This task automatically gets executed before every Rake task in CI, so that we always see the feature flag environment for the task at the time of execution.
Example:
>>> Feature flag status:
✔ auto_deploy
✔ auto_deploy_components
✔ auto_deploy_gitaly
𐄂 auto_deploy_gitlab_pages
𐄂 auto_deploy_gitlab_shell
𐄂 auto_deploy_gitlab_workhorse
𐄂 auto_deploy_on_security
𐄂 auto_deploy_pipeline_wait
𐄂 auto_deploy_successful_build
𐄂 client_wrapper
✔ gitaly_tagging
✔ log_httparty
𐄂 omnibus_api_release
✔ production_status
✔ release_json_tracking
𐄂 security_branch_prefix
✔ security_cherry_picker
𐄂 security_release_auto_deploy_experiment
✔ security_remote
✔ tag_scheduled_rc
✔ update_gitaly