[TASK] Release version 1.4.0

Upload version 1.4.0 to TER.

Resolves: #58681
Releases: 1.4
Change-Id: I20c7513e35e0680c38b8e0bb7c06b11ff6191ba2
Reviewed-on: https://review.typo3.org/29991
Reviewed-by: Francois Suter
Tested-by: Francois Suter