chore: Add missing use in SessionTest

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>

Author: come-nc

tests/lib/User/SessionTest.php

@@ -9,6 +9,7 @@
 namespace Test\User;
 
 use OC\AppFramework\Http\Request;
+use OC\Authentication\Exceptions\InvalidTokenException;
 use OC\Authentication\Events\LoginFailed;
 use OC\Authentication\Token\DefaultTokenMapper;
 use OC\Authentication\Token\DefaultTokenProvider;