Document future deprecation of Group Export/Import
Problem to solve
With the delivery of Parity with Group Export/Import, which is the next milestone for the GitLab Group Migration, we plan to deprecate the Group Export/Import functionality for migrating Groups.
At this time, this is not obvious to the users of Group Export/Import feature, as it is noted on the category direction page and the corresponding epic, but not in the documentation.
Proposal
Add a note to the Group Export/Import documentation stating that this feature will be deprecated following the delivery of the new Group Migration feature.