[BUGFIX] Log DataHandler errors instead of FlashMessage

DataHandler should log instead of creating FlashMessages
since FlashMessages fail in CLI context. Method
->printLogErrorMessages() turns DataHandler logs
into FlashMessages already and is used in appropriate
contexts like EditDocumentController and friends.

Resolves: #93549
Releases: master, 10.4
Change-Id: I0a39204cfced5be5513cfc2f58452ffb8a15942e
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/68921


Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>