fix: month

Signed-off-by: Gabriele Bartolini <[email protected]>

Author: gbartolini

content/docs/preview.md

@@ -1,6 +1,6 @@
 ---
 release:  1.26.0-rc1 (preview)
 location: /documentation/preview
-release_date: 28 Mon 2025
+release_date: 28 Mar 2025
 release_notes: https://github.com/cloudnative-pg/cloudnative-pg/releases/tag/v1.26.0-rc1
 ---