Tweak the wording a little

Author: k0kubun

en/news/_posts/2026-04-21-ruby-4-0-3-released.md

@@ -11,7 +11,7 @@ Ruby 4.0.3 has been released.
 
 This release only contains ERB 6.0.1.1, which fixes [CVE-2026-41316](https://www.ruby-lang.org/en/news/2026/04/21/erb-cve-2026-41316/).
 
-If your application calls Marshal.load on untrusted data AND has both erb and activesupport loaded, please update your ERB to 4.0.3.1, 4.0.4.1, 6.0.1.1, 6.0.4 or later. You can use this Ruby 4.0.3 release to do so.
+If your application calls Marshal.load on untrusted data AND has both erb and activesupport loaded, please update your ERB to 4.0.3.1, 4.0.4.1, 6.0.1.1, 6.0.4 or later. You may use this Ruby 4.0.3 release to do so.
 
 ## Release Schedule