Update CVE-2025-7207.yml to remove 2 old links per request

Removed outdated release links for mruby.

Author: jasnow

rubies/mruby/CVE-2025-7207.yml

@@ -26,8 +26,6 @@ related:
     - https://github.com/mruby/mruby/blob/6f321251785c2396cb7e6a576ac2080c1adb4491/NEWS.md
     - https://github.com/mruby/mruby/commit/1fdd96104180cc0fb5d3cb086b05ab6458911bb9.patch
     - https://github.com/mruby/mruby/blob/master/NEWS.md
-    - https://mruby.org/releases/2025/04/20/mruby-3.4.0-released.html
-    - https://mruby.org/releases/2024/02/14/mruby-3.3.0-released.html
     - https://github.com/mruby/mruby/commit/1fdd96104180cc0fb5d3cb086b05ab6458911bb9
     - https://github.com/mruby/mruby/issues/6509#event-17145516649
     - https://github.com/mruby/mruby/issues/6509