add proper date for hacktoberfest 2025

Signed-off-by: Lee Calcote <lee.calcote@layer5.io>

Author: leecalcote

src/collections/events/2025/hacktoberfest-2025/index.mdx

@@ -3,7 +3,7 @@ title: "Hacktoberfest Prep 2025: Design with Meshery"
 description: "Prepare for Hacktoberfest with Layer5 MeshMates and Maintainers. Join seasoned open source maintainers, hack through easy issues, and grow your skills. Discover Newcomers resources and explore the Layer5 Community Handbook."
 thumbnail: ./layer5-hacktoberfest11-badge-large.png
 darkthumbnail: ./layer5-hacktoberfest11-badge-large.png
-date: 2025-00-03
+date: 2025-10-03
 eurl: https://hacktoberfest.com
 type: Event
 speakers: [Ritesh Karankal]