Update spekaer list for kubecon-na-2025

Added Shivay & Hussaina's name to the speakers list

Signed-off-by: Hussaina Begum <hexxdump@gmail.com>

Author: hexxdump

src/collections/events/2025/kubecon-na-2025/index.mdx

@@ -9,7 +9,7 @@ type: Event
 published: true
 upcoming: true
 feature: true
-speakers: ["Yash Sharma", "Lee Calcote"]
+speakers: ["Yash Sharma", "Lee Calcote", "Shivay Lamba", "Hussaina Begum"]
 
 ---
 import Button from "../../../../reusecore/Button";
@@ -72,4 +72,4 @@ Contribute to the documentation by incorporating your own examples of cloud nati
   </p>
 
   <Button $secondary title="See Details" $url="https://kccncna2025.sched.com/event/27NlC/contribfest-meshery-contribfest-dive-deep-into-extending-cloud-native-management-yash-sharma-digitalocean-lee-calcote-layer5?iframe=yes&w=100%&sidebar=yes&bg=no" $external={ true } />
-</div>
+</div>