Update authors in GSoC 2025 showcase post (#1234)

Removed 'hamish' from the list of authors.

Author: ktoso

_posts/2025-11-12-gsoc-2025-showcase-code-completion.md

@@ -3,7 +3,7 @@ layout: new-layouts/post
 published: true
 date: 2025-11-12 17:05:00
 title: "Swift GSoC 2025 highlight: Improved code completion for Swift"
-author: [ahmedelrefaey, hamish, ktoso]
+author: [ahmedelrefaey, ktoso]
 category: "Developer Tools"
 ---