add missing require

Author: simonLeary42

test/phpunit-bootstrap.php

@@ -13,6 +13,7 @@
 require_once __DIR__ . "/../resources/lib/UnityConfig.php";
 require_once __DIR__ . "/../resources/lib/UnityWebhook.php";
 require_once __DIR__ . "/../resources/lib/UnityRedis.php";
+require_once __DIR__ . "/../resources/lib/UnityGithub.php";
 
 global $HTTP_HEADER_TEST_INPUTS;
 $HTTP_HEADER_TEST_INPUTS = [