Fix missing import of ILogger

Signed-off-by: Joas Schilling <coding@schilljs.com>

Author: nickvergessen

tests/Core/Controller/TwoFactorChallengeControllerTest.php

@@ -31,6 +31,7 @@
 use OCP\Authentication\TwoFactorAuth\ILoginSetupProvider;
 use OCP\Authentication\TwoFactorAuth\IProvider;
 use OCP\Authentication\TwoFactorAuth\TwoFactorException;
+use OCP\ILogger;
 use OCP\IRequest;
 use OCP\ISession;
 use OCP\IURLGenerator;