Update tickets.mdx

Author: clytaemnestra

src/content/pages/tickets.mdx

@@ -53,7 +53,7 @@ Combined tickets are **limited to 300** due to tutorial capacity!
 
 <Note type="warning">Regular tickets are available until <b>June 26, 2026</b> — late-bird rates apply after.</Note>
 
-
+<TicketTiers ticketShopLink="https://tickets.europython.eu/" />
 
 ### Volume Discounts
 Is your company attending the conference as a team? We offer the following volume discounts: