[TASK] Mention new default for cookieHttpOnly in NEWS.txt

Resolves: #53291
Releases: 6.2
Change-Id: Ie941ada0519c8ac22153b07bb2b1a297333332df
Reviewed-on: https://review.typo3.org/25140
Reviewed-by: Steffen Müller
Tested-by: Steffen Müller