Fix model connection for sqlite tests

Author: anderson-comvex

src/Traits/CachePrefixing.php

@@ -28,7 +28,7 @@ protected function getCachePrefix() : string
 
     protected function getDatabaseName() : string
     {
-        return $this->query->getConnection()->getDatabaseName();
+        return $this->model->getConnection()->getDatabaseName();
     }
 
     protected function getConnectionName() : string