Fix the affected version of StringIO (#3214)

Author: shugo

en/news/_posts/2024-03-21-buffer-overread-cve-2024-27280.md

@@ -34,12 +34,13 @@ You can use `gem update stringio` to update it. If you are using bundler, please
 
 * Ruby 3.0.6 or lower
 * Ruby 3.1.4 or lower
-* StringIO gem 3.0.2 or lower
+* StringIO gem 3.0.1 or lower
 
 ## Credits
 
 Thanks to [david_h1](https://hackerone.com/david_h1?type=user) for discovering this issue.
 
 ## History
 
+* Fixed the affected version of StringIO (3.0.2 -> 3.0.1) at 2024-04-11 12:50:00 (UTC)
 * Originally published at 2024-03-21 4:00:00 (UTC)