feat(whitelisting): Increase log level of app blocking

This is interesting to know who is trying to access a blocked ressource.

Signed-off-by: Louis Chmn <louis@chmn.me>

Author: artonge

lib/AppWhitelist.php

@@ -69,7 +69,7 @@ public function isUrlAllowed(IUser $user, string|false $url): bool {
 				exit;
 			}
 
-			$this->logger->notice('Blocking access to non-whitelisted app (' . $app . ') for guest', ['app' => 'guests']);
+			$this->logger->warning('Blocking access to non-whitelisted app (' . $app . ') for guest', ['app' => 'guests']);
 			return false;
 		}