fix(types): remove BigNumberValue usages in http types (#9285)

remove all `BigNumberValue` usages in http types, since http requests will only receive a number.

packages/medusa/src/api/store/payment-collections/[id]/payment-sessions/route.ts

@@ -37,5 +37,7 @@ export const POST = async (
     req.remoteQueryConfig.fields
   )
 
-  res.status(200).json({ payment_collection: paymentCollection })
+  res.status(200).json({
+    payment_collection: paymentCollection as HttpTypes.StorePaymentCollection,
+  })
 }