[TASK] Rename two test fixture files

phpunit 10 expects files that end with Test.php
to contain tests. Two fixture files are renamed
since phpunit detects them as test cases, but
they are not.

Resolves: #100321
Related: #100249
Releases: main
Change-Id: Icdf0cc44328c7687544e90c612128b1db2ea48fc
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78275


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