[BUGFIX] Correct ac test file namespace

It's TYPO3\CMS\Core\Tests\Acceptance\Backend\Site\SiteModuleCest
not TYPO3\CMS\Core\Tests\Acceptance\Backend\Redirect\SiteModuleCest

Resolves: #94330
Releases: master, 10.4
Change-Id: I0661feec976aeeddce179d9177e36e729fc0b72d
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/69478
Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>

typo3/sysext/core/Tests/Acceptance/Backend/Site/SiteModuleCest.php

@@ -15,7 +15,7 @@
  * The TYPO3 project - inspiring people to share!
  */
 
-namespace TYPO3\CMS\Core\Tests\Acceptance\Backend\Redirect;
+namespace TYPO3\CMS\Core\Tests\Acceptance\Backend\Site;
 
 use TYPO3\CMS\Core\Tests\Acceptance\Support\BackendTester;
 use TYPO3\CMS\Core\Tests\Acceptance\Support\Helper\ModalDialog;