Add specs for license checks for group-level work items
What does this MR do and why?
Related to #477221 (closed)
Follow-up to Adjust group level work item abilities to accou... (!161558 - merged) where we added a license check for work items at the group level but due to the number of specs affected, we used the flag enforce_check_group_level_work_items_license
(disabled for all specs) to fix them incrementally in multiple MRs.
Note that we reused the license epics
which will be renamed in future work.
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