bad typo in date

(cherry picked from commit 1020259)

Author: cderv

docs/blog/posts/2025-xx-xx-R-package-release-1.5/index.qmd

@@ -7,7 +7,7 @@ categories:
   - knitr
   - Releases
 author: Christophe Dervieux
-date: "2025-01-25"
+date: "2025-07-25"
 image: thumbnail.png
 image-alt: "quarto R logo with 1.5.0 release text"
 ---