Merge pull request #13577 from nextcloud/backport/13576/stable30

[stable30] fix(call): Fix support for PHP < 8.3

lib/Controller/CallController.php

@@ -173,7 +173,7 @@ public function downloadParticipantsForCall(string $format = 'csv'): DataDownloa
 
 		try {
 			$dateTimeZone = new \DateTimeZone($timezone);
-		} catch (\DateInvalidTimeZoneException) {
+		} catch (\Throwable) {
 			$dateTimeZone = null;
 		}