upgrade sqlx to 0.7 Fixes #76 restructure registrations

src/model/tripdetails.rs

@@ -141,7 +141,7 @@ ORDER BY day;",
         .fetch_one(db)
         .await
         .unwrap();
-        if is_cox.amount > 0 {
+        if is_cox.amount.unwrap() > 0 {
             return CoxAtTrip::Yes(Action::Helping);
         }