Update client version and mocks

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeParsingHelper.java

@@ -66,7 +66,7 @@ public class YoutubeParsingHelper {
     private YoutubeParsingHelper() {
     }
 
-    private static final String HARDCODED_CLIENT_VERSION = "2.20210413.07.00";
+    private static final String HARDCODED_CLIENT_VERSION = "2.20210415.07.00";
     private static final String HARDCODED_KEY = "AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8";
     private static String clientVersion;
     private static String key;