[TASK] NEWS.txt entry about fluid arrays in view helpers only

Change-Id: Icedec3ba51f5339f2805fa38d3e239ddee5b9049
Resolves: #46674
Related: #43705
Releases: 6.1
Reviewed-on: https://review.typo3.org/19333
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn