[TASK] Extbase: Traverse validation results until first error

When deciding whether to call the action method or error method it's
sufficient to traverse results until the first error.
To improve performance break the foreach on first
found (not ignored) error.

Resolves: #63726
Releases: master, 6.2
Change-Id: I988cb5c8ac20518c359db75bb46fe6702c549cf6
Reviewed-on: http://review.typo3.org/35389
Reviewed-by: Steffen Müller <typo3@t3node.com>
Tested-by: Steffen Müller <typo3@t3node.com>