Fix MetadataRendererTest: use base theme templates path

Author: kayjoosten

tests/unit/OpenConext/EngineBlock/Xml/MetadataRendererTest.php

@@ -349,7 +349,7 @@ private function buildMetadataRenderer(
             ->willReturn('EB_metadata');
 
         $twigLoader = new FilesystemLoader();
-        $twigLoader->addPath($basePath . '/theme/openconext/templates/modules', 'theme');
+        $twigLoader->addPath($basePath . '/theme/base/templates/modules', 'theme');
         $environment = new Environment($twigLoader);
 
         $translator = m::mock(TranslatorInterface::class);