Register SeoBundle for tests (#939)

Author: mcop1

.github/ci/files/config/bundles.php

@@ -2,4 +2,5 @@
 
 return [
     'Pimcore\\Bundle\\AdminBundle\\PimcoreAdminBundle' => ['all' => true],
+    'Pimcore\\Bundle\\SeoBundle\\PimcoreSeoBundle' => ['all' => true],
 ];