[media.ccc.de] Fix conferences kiosk test

extractor/src/test/java/org/schabi/newpipe/extractor/services/media_ccc/MediaCCCConferenceListExtractorTest.java

@@ -24,7 +24,7 @@ public class MediaCCCConferenceListExtractorTest {
     @BeforeClass
     public static void setUpClass() throws Exception {
         NewPipe.init(DownloaderTestImpl.getInstance());
-        extractor = MediaCCC.getKioskList().getDefaultKioskExtractor();
+        extractor = MediaCCC.getKioskList().getExtractorById("conferences", null);
         extractor.fetchPage();
     }