[TASK] Adapt to strict FunctionalTestCase

Adapt to a patch in typo3/testing-framework, thus
update of typo3/testing-framework in composer.lock
is mantandory in this patch.

Used command:

composer u typo3/testing-framework

Resolves: #96172
Releases: main
Change-Id: I9c9a08eca10a836b450cc1717c02cb7afa6be01e
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/72342


Tested-by: core-ci <typo3@b13.com>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>