fix: Unreserve utxos on wallet sync

On each blockchain sync we clear the locked utxos. This is fine, because we are syncing with the blockchain and are learning about all actually spent utxos.

crates/xxi-node/src/node/wallet.rs

@@ -114,6 +114,10 @@ impl<D: BdkStorage, S: TenTenOneStorage, N: Storage + Send + Sync + 'static> Nod
         .await
         .expect("task to complete")?;
 
+        // On sync, we unlock our locked utxos, because we are syncing with the blockchain we will
+        // find already spent utxos and release those which were locked unnecessarily.
+        self.wallet.locked_utxos.lock().clear();
+
         Ok(())
     }