[soundcloud] Reduce pagination limit to fix 502 Bad Gateway errors when listing a user's tracks.

Per the documentation here https://developers.soundcloud.com/blog/offset-pagination-deprecated the maximum limit is 200, so let's respect that (even if a higher value sometimes works).

youtube_dl/extractor/soundcloud.py

@@ -558,8 +558,10 @@ class SoundcloudSetIE(SoundcloudPlaylistBaseIE):
 
 class SoundcloudPagedPlaylistBaseIE(SoundcloudIE):
     def _extract_playlist(self, base_url, playlist_id, playlist_title):
+        # Per the SoundCloud documentation, the maximum limit for a linked partioning query is 200.
+        # https://developers.soundcloud.com/blog/offset-pagination-deprecated
         COMMON_QUERY = {
-            'limit': 80000,
+            'limit': 200,
             'linked_partitioning': '1',
         }