move vushu's post to the 19th

Author: lizmat

raku-advent-2023/authors.md

@@ -32,9 +32,10 @@ reminders.
 16. vrurg: It's Too Generic; Please Instantiate!
 17. Coke: Writing some horrible Raku code this Christmas!
 18. pheix: Dissecting the Go-Ethereum keystore files using Raku tools
+19. vushu: Autogenerating Raku bindings!
 <!-- insert here -->
 21. ab5tract: Raku + Zig: A new frontier for Raku throughput
-22. vushu: Autogenerating Raku bindings!
+<!-- insert here -->
 23. librasteve: Craggy Christmas Chronicles
 <!-- insert here -->
 25. lizmat: Rakudo 2023 Review