Update sponsor packages

Author: egeakman

src/components/sponsor-tiers/sponsor-tiers.astro

@@ -106,7 +106,7 @@ features: [
 
   {
     title: "Silver",
-    price: 6_500,
+    price: 7_000,
     slotsLeft: "10",
     features: [
       "Small booth in exhibit hall",