Ensure groups have UUIDs in transfer_project_spec

What does this MR do?

Small MR that changes the setup for QA test qa/specs/features/browser_ui/1_manage/group/transfer_project_spec.rb. It currently creates a Sandbox and Group with a hardcoded name. This causes tests run by other users against the same environment to fail since they don't have the correct permissions.

Quick fix is to add UUIDs to the group names. Issue was found when running the N+1 tests against staging that require an admin user to run to enable a feature flag.