[TASK] Make extbase/Tests/Unit/Mvc/Web/RequestBuilderTest.php notice free

Releases: master
Resolves: #85265
Change-Id: Ie4d13083c256a31987097d2e0990d6e5207bef13
Reviewed-on: https://review.typo3.org/57222


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>