Updated content

Author: github-actions[bot]

README.md

@@ -175,6 +175,7 @@
 # The latest news from ruby-lang.org
 
 <!-- news starts -->
+* [Ruby 3.3.8 Released](https://www.ruby-lang.org/en/news/2025/04/09/ruby-3-3-8-released/) <br/> <sub>2025-04-09 11:00:00</sub>
 * [Ruby 3.2.8 Released](https://www.ruby-lang.org/en/news/2025/03/26/ruby-3-2-8-released/) <br/> <sub>2025-03-26 04:45:01</sub>
 * [Ruby 3.1.7 Released](https://www.ruby-lang.org/en/news/2025/03/26/ruby-3-1-7-released/) <br/> <sub>2025-03-26 04:44:27</sub>
 * [Security advisories: CVE-2025-27219, CVE-2025-27220 and CVE-2025-27221](https://www.ruby-lang.org/en/news/2025/02/26/security-advisories/) <br/> <sub>2025-02-26 07:00:00</sub>
@@ -184,7 +185,6 @@
 * [Ruby 3.3.7 Released](https://www.ruby-lang.org/en/news/2025/01/15/ruby-3-3-7-released/) <br/> <sub>2025-01-15 07:51:59</sub>
 * [Ruby 3.4.1 Released](https://www.ruby-lang.org/en/news/2024/12/25/ruby-3-4-1-released/) <br/> <sub>2024-12-25 00:00:00</sub>
 * [Ruby 3.4.0 Released](https://www.ruby-lang.org/en/news/2024/12/25/ruby-3-4-0-released/) <br/> <sub>2024-12-25 00:00:00</sub>
-* [Ruby 3.4.0 rc1 Released](https://www.ruby-lang.org/en/news/2024/12/12/ruby-3-4-0-rc1-released/) <br/> <sub>2024-12-12 00:00:00</sub>
 <!-- news ends -->
 
 # Installation