Update finaid.mdx

Author: vellankikoti

src/content/pages/finaid.mdx

@@ -210,7 +210,7 @@ In addition, please pay close attention to the following:
   due to sanctions or international regulations.
 - Reimbursements will only be made after we’ve received your
   travel/accommodation receipts/invoices. The deadline to submit your
-  receipts/invoices is **20 July 2025** [Anywhere on Earth][AoE].
+  receipts/invoices is **25 July 2025** [Anywhere on Earth][AoE].
 - Please make sure that your receipts/invoices contain the information necessary
   for us to validate them. At the very least, they should contain your name, the
   date, the amount, and specify what the receipt/invoice is for.