style: fix phpcs import order in DocMdpHandlerTest

Sort use statements alphabetically.

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

tests/php/Unit/Handler/DocMdpHandlerTest.php

@@ -12,8 +12,8 @@
 use OCA\Libresign\Db\File;
 use OCA\Libresign\Enum\DocMdpLevel;
 use OCA\Libresign\Handler\DocMdpHandler;
-use OCP\IL10N;
 use OCA\Libresign\Tests\Unit\PdfFixtureTrait;
+use OCP\IL10N;
 use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;