fix: update seeds file to use correct payout_status enum value

- Change 'not_requested' to 'pending_request' in seeds.rb
- Fixes ArgumentError when running db:seed after enum update
- Ensures seeds file works with the new enum naming

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

db/seeds.rb

@@ -147,8 +147,8 @@ completed_event = Event.find_or_create_by!(name: "Completed Music Festival") do
   e.featured = false
   e.image = "https://data.bizouk.com/cache1/events/images/10/78/87/b801a9a43266b4cc54bdda73bf34eec8_700_800_auto_97.jpg"
   e.user = completed_event_promoter
-  # Ensure payout status is not_requested
-  e.payout_status = :not_requested
+  # Ensure payout status is pending_request
+  e.payout_status = :pending_request
 end
 
 # Create ticket types for the completed event