Fix test failing because music channel could be Vevo

In yt stream extractor test.
The Vevo and the normal music channel are equivalent, so Youtube picks one of them at random, and in playerResponse the channel id is Vevo's one.

Author: Stypox

extractor/src/test/java/org/schabi/newpipe/extractor/services/youtube/stream/YoutubeStreamExtractorDefaultTest.java

@@ -124,7 +124,11 @@ public void testGetUploadDate() throws ParsingException, ParseException {
 
         @Test
         public void testGetUploaderUrl() throws ParsingException {
-            assertEquals("https://www.youtube.com/channel/UCsRM0YB_dabtEPGPTKo-gcw", extractor.getUploaderUrl());
+            String url = extractor.getUploaderUrl();
+            if (!url.equals("https://www.youtube.com/channel/UCsRM0YB_dabtEPGPTKo-gcw") &&
+                !url.equals("https://www.youtube.com/channel/UComP_epzeKzvBX156r6pm1Q")) {
+                fail("Uploader url is neither the music channel one nor the Vevo one");
+            }
         }
 
         @Test