Merge pull request TeamNewPipe#725 from FireMasterK/related-uploader-avatar

Extract Channel Avatar in related videos.

Author: TobiGr

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeStreamInfoItemExtractor.java

@@ -167,11 +167,16 @@ public String getUploaderUrl() throws ParsingException {
     @Override
     public String getUploaderAvatarUrl() throws ParsingException {
 
-        if(videoInfo.has("channelThumbnailSupportedRenderers")) {
+        if (videoInfo.has("channelThumbnailSupportedRenderers")) {
             return JsonUtils.getArray(videoInfo, "channelThumbnailSupportedRenderers.channelThumbnailWithLinkRenderer.thumbnail.thumbnails")
                     .getObject(0).getString("url");
         }
 
+        if (videoInfo.has("channelThumbnail")) {
+            return JsonUtils.getArray(videoInfo, "channelThumbnail.thumbnails")
+                    .getObject(0).getString("url");
+        }
+
         return null;
     }