[TASK] Release version 1.8.0

Upload version 1.8.0 to TER.

Resolves: #58662
Releases: 1.8
Change-Id: Ibfcd07b6c71fec51f9448a980c9cf8525d837754
Reviewed-on: https://review.typo3.org/29981
Reviewed-by: Francois Suter
Tested-by: Francois Suter