Too many changes in OpenAPI spec to describe each one, but basically it is tag fixes, bringing consitency to operation summaries and fixing some incorrect information.
grep -rl '# Copyright © .* Pleroma' * | xargs sed -i 's;Copyright © .* Pleroma .*;Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>;'
admin_token
admin_api_params/0