Based on https://github.com/DIRACGrid/DIRAC/pull/7143#issuecomment-1705247824 - [x] Edit v8.0 to support both CS structures - [x] v9: remove system instance lookup - [x] Make script to edit the CS to reflect the new structure - [x] Update the v9.0 wiki page to say that the script needs to be ran before updating
Based on #7143 (comment)