Merge pull request #3466 from riseshia/import-fix-broken-link-3-4-0

Fix broken link of 3.4.0 release news (ko)

ko/news/_posts/2024-12-25-ruby-3-4-0-released.md

@@ -337,8 +337,9 @@ Ruby는 1993년에 Matz(마츠모토 유키히로) 씨가 처음 개발했고,
 [Feature #20715]: https://bugs.ruby-lang.org/issues/20715
 [Feature #20775]: https://bugs.ruby-lang.org/issues/20775
 [Bug #20795]: https://bugs.ruby-lang.org/issues/20795
+[Bug #20433]: https://bugs.ruby-lang.org/issues/20433
 [Feature #20860]: https://bugs.ruby-lang.org/issues/20860
 [Feature #20875]: https://bugs.ruby-lang.org/issues/20875
 [Feature #20884]: https://bugs.ruby-lang.org/issues/20884
-[sigstore.dev]: sigstore.dev
+[sigstore.dev]: https://www.sigstore.dev
 [ruby/net-http-sspi]: https://github.com/ruby/net-http-sspi