update recruit redirect link to 2027 pre registration

Author: denny0223

_redirects/recruit.md

@@ -3,5 +3,5 @@ layout: redirect
 title: "SITCON 工人招募資訊"
 description: "想參與 SITCON 的籌備工作嗎？歡迎查看工人招募資訊，與我們一起打造更精彩的活動！"
 image: "https://sitcon.org/branding/assets/logos/withname.png"
-redirect_to: "https://hackmd.io/@SITCON/2026-recruit"
+redirect_to: "https://forms.gle/qjwKhp2QAdpizGsR7"
 ---