Add record for workshop-42

Author: snoozer05

activities/index.md

@@ -4,6 +4,7 @@ layout: default
 
 ## 2026年
 
+- 2026-05-07 Ruby勉強会@札幌-42（参加者10名）
 - 2026-04-16 Ruby勉強会@札幌-41（参加者6名）
 - 2026-04-02 Ruby勉強会@札幌-40（参加者6名）
 - 2026-03-26 Ruby勉強会@札幌-39（参加者5名）

events/workshop/index.md

@@ -43,4 +43,5 @@ title: Ruby勉強会@札幌
 * [Ruby勉強会@札幌-38](https://rubysapporo.esa.io/posts/46) (🔒 member only)
 * [Ruby勉強会@札幌-39](https://rubysapporo.esa.io/posts/48) (🔒 member only)
 * [Ruby勉強会@札幌-40](https://rubysapporo.esa.io/posts/50) (🔒 member only)
-* [Ruby勉強会@札幌-41](https://rubysapporo.esa.io/posts/51) (🔒 member only)
+* [Ruby勉強会@札幌-41](https://rubysapporo.esa.io/posts/51) (🔒 member only)
+* [Ruby勉強会@札幌-42](https://rubysapporo.esa.io/posts/52) (🔒 member only)