[TASK] Strictify UnitTests part 2

The following core extensions are handled:

EXT:reports
EXT:redirects
EXT:recycler
EXT:recordlist
EXT:opendocs
EXT:linkvalidator

Resolves: #94855
Releases: master
Change-Id: Ifb6b2ca2f6c25dae2c3dab3d2d4ca6571312c9f4
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/70512


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