[CHI-2025] Adding Red Hat as Platinum Sponsor (#14448)

* [CHI-2025] Adding Red Hat as Platinum Sponsor

Adding Red Hat as Platinum Sponsor

* remove dupe sponsor

---------

Co-authored-by: Matty Stratton <[email protected]>
Co-authored-by: Matty Stratton <[email protected]>

Author: albert-cheung

data/events/2025/chicago/main.yml

@@ -144,6 +144,8 @@ organizer_email: "[email protected]" # Put your organizer email address her
 sponsors:
 
  #  url: http://mysponsor.com/?campaign=me # Use this if you need to over-ride a sponsor URL.
+  - id: redhat
+    level: platinum
   - id: arresteddevops
     level: community
 
@@ -164,7 +166,3 @@ sponsor_levels:
     label: Bronze
   - id: community
     label: Community
-
-sponsors:
-  - id: redhat
-    level: platinum