[BUGFIX] Add missing notice color for alerts

Resolves: #100684
Releases: main
Change-Id: I209e45f3a486f4d42c8ce8b781d5d5e56ac51350
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78767


Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>