Fix guaranteed deadlock when refreshing token during webhook handling

src/web.rs

@@ -177,6 +177,8 @@ async fn monzo_hook(hook: MonzoHook, state: State) -> anyhow::Result<impl warp::
                 .unwrap_or("unk");
 
             buf.push_str(&format!(" on {}", on_account_name));
+            // MUST drop state_inner to avoid deadlock
+            drop(state_inner);
             if let Some(monzo_client) = monzo_client_freshened(&state).await? {
                 // include new balance
                 match monzo_client.balance(&txn_created.account_id).await {