Fix URL

Author: clytaemnestra

src/content/pages/tickets.mdx

@@ -13,7 +13,7 @@ Discover the latest Python trends, learn from 180+ expert speakers, network with
 </div>
 
 <div class="text-center">
-<ButtonLink url="https://ticket.europython.eu/">Beam me up to the ticket shop!</ButtonLink>
+<ButtonLink url="https://tickets.europython.eu/">Beam me up to the ticket shop!</ButtonLink>
 </div>
 
 
@@ -141,5 +141,5 @@ If you have any questions, check our <a href="/faq" class="text-primary hover:te
 
 
 <div class="text-center">
-<ButtonLink url="https://ticket.europython.eu/">Beam me up to the ticket shop!</ButtonLink>
+<ButtonLink url="https://tickets.europython.eu/">Beam me up to the ticket shop!</ButtonLink>
 </div>