doc: run license builder

License is out of date

PR-URL: #35577
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Beth Griggs <[email protected]>
Reviewed-By: Mary Marchini <[email protected]>
Reviewed-By: Shelley Vohr <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>

Author: MylesBorins

LICENSE

@@ -1059,6 +1059,7 @@ The externally maintained libraries used by Node.js are:
 
 - GYP, located at tools/gyp, is licensed as follows:
   """
+    Copyright (c) 2020 Node.js contributors. All rights reserved.
     Copyright (c) 2009 Google Inc. All rights reserved.
 
     Redistribution and use in source and binary forms, with or without