Corrected DefaultConfigTest to reflect use-cropbox

Author: stackpr

src/Tests/DefaultConfigTest.php

@@ -35,6 +35,7 @@ public function getConfigurationDefaults() {
             '#engine' => 'Convert\\ImageMagick',
             "colorspace" => "sRGB",
             "flatten" => 1,
+            "define" => 'pdf:use-cropbox=true',
           ),
         ),
       ),