fix: Add IRemoteHostValidator to TaskProcessingTest dependencies

Signed-off-by: Marcel Klehr <mklehr@gmx.net>

Author: marcelklehr

tests/lib/TaskProcessing/TaskProcessingTest.php

@@ -628,6 +628,7 @@ protected function setUp(): void {
 			Server::get(IUserSession::class),
 			Server::get(ICacheFactory::class),
 			Server::get(IFactory::class),
+			Server::get(IRemoteHostValidator::class),
 		);
 	}