[ZRH-2026] Add Zuhlke as bronze sponsor

Author: romanoroth

data/events/2026/zurich/main.yml

@@ -167,6 +167,8 @@ sponsors:
   level: gold
 - id: cyberlink
   level: event
+- id: zuhlke
+  level: bronze
 
 sponsors_accepted : "yes" # Whether you want "Become a XXX Sponsor!" link