fix post date

Author: jamesfredley

posts/2025-07-15-grails-7-m5.md

@@ -2,7 +2,7 @@
 version: 7.0.0-M5
 priorVersion: 7.0.0-M4
 title: Apache Grails (Incubating) [%version] - Release Announcement
-date: June 15, 2025
+date: July 15, 2025
 description: The Apache Grails (incubating) community is excited to announce the Milestone [%version] release of the Grails Framework!
 author: James Fredley
 image: grails-blog-index-3.png