Ensure proper argument type

public/typo3conf/ext/ep_track/Classes/Middleware/TrackingMiddleware.php

@@ -109,7 +109,7 @@ class TrackingMiddleware implements MiddlewareInterface
 
         /** @var SiteFinder $siteFinder */
         $siteFinder = GeneralUtility::makeInstance(SiteFinder::class);
-        $site = $siteFinder->getSiteByPageId($targetPage);
+        $site = $siteFinder->getSiteByPageId((int)$targetPage);
 
         $params = [];