Switch upstream of heptapod-0-19 and apply new CI cache key
#441 (closed) and #442 (closed) for the 0.19 release branch
Edited by Georges Racinet
This instance will be upgraded to Heptapod 18.5.1 on 2025-11-13 between 17:00 and 18:00 UTC+2
#441 (closed) and #442 (closed) for the 0.19 release branch