Update Hacktoberfest 2025 speakers list to reflect current participants

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

Author: leecalcote

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

@@ -6,7 +6,7 @@ darkthumbnail: ./hacktoberfest-layer5-first-pr.webp
 date: 2025-10-03
 #eurl: https://hacktoberfest.com
 type: Event
-speakers: [Ritesh Karankal, Naman Verma, Aabid Sofi, Darshan N]
+speakers: [Ritesh Karankal, Aabid Sofi, Yash Sharma]
 published: true
 upcoming: true
 register: true