[TASK] NEWS.txt entry about changed Fluid ImageViewHelper

The Fluid ImageViewHelper changed its default rendering
behaviour for title attributes, NEWS.txt gets a hint about this.

Releases: 6.2
Resolves: #48046
Related: #47552
Change-Id: I0afdf76844575786de40560a37ed758768f192d0
Reviewed-on: https://review.typo3.org/20633
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters