Fix youtube-dl source

helpers/make-youtube-dl

 #!/bin/sh
 #
 #    Copyright (C) 2011  Rubén Rodríguez <ruben@trisquel.info>
+#    Copyright (C) 2021  Luis Guzman <ark@switnet.net>
 #
 #    This program is free software; you can redistribute it and/or modify
 #    it under the terms of the GNU General Public License as published by
@@ -18,8 +19,9 @@
 #
 
 VERSION=1
-EXTERNAL='deb-src http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu $UPSTREAM main'
-REPOKEY="531EE72F4C9D234C"
+EXTERNAL='deb-src http://ftp.debian.org/debian stable main'
+REPOKEY=648ACFD622F3D138
+
 
 . ./config