fix format on PatronStar

Author: SaraVieira

packages/common/src/components/PatronStar/index.tsx

@@ -12,7 +12,12 @@ interface PatronStarProps {
 
 export function PatronStar({ subscriptionSince, ...props }: PatronStarProps) {
   return (
-    <Tooltip content={`Patron since ${format(subscriptionSince, 'MMM Y')}`}>
+    <Tooltip
+      content={`Patron since ${format(
+        new Date(subscriptionSince),
+        'MMM yyyy'
+      )}`}
+    >
       <Container>
         <StarIcon {...props} />
       </Container>