update Carlas last name

Author: themightymuppet

data/events/2026/denver/main.yml

@@ -82,7 +82,7 @@ team_members: # Name is the only required field for team members.
     twitter: "tavisto"
     employer: "EasyPost"
     mastodon: "https://hachyderm.io/@tavisto"
-  - name: "Carla Murray"
+  - name: "Carla Burns"
     role: "Alumni"
     employer: "Splunk"
     twitter: "carlajmurray"