fix: run cs:fix

Signed-off-by: Vitor Mattos <[email protected]>

Author: vitormattos

tests/php/Unit/Service/Certificate/RulesServiceTest.php

@@ -8,7 +8,6 @@
 
 namespace OCA\Libresign\Tests\Unit\Service;
 
-use OCA\Activity\Tests\Mock\Provider;
 use OCA\Libresign\AppInfo\Application;
 use OCA\Libresign\Service\Certificate\RulesService;
 use OCP\IL10N;