Sync with Olivia every 5 seconds

We are only making requests to Olivia that are absolutely necessary,
i.e. only fetch attestations when they are likely ready and only
fetch attestations that we definitely need.

As a result, we can trigger the sync much more frequent.

Fixes #349.

daemon/src/maker.rs

@@ -257,7 +257,7 @@ async fn main() -> Result<()> {
 
                 tokio::spawn(
                     oracle_actor_context
-                        .notify_interval(Duration::from_secs(60), || oracle::Sync)
+                        .notify_interval(Duration::from_secs(5), || oracle::Sync)
                         .unwrap(),
                 );
                 let actor = fan_out::Actor::new(&[&cfd_maker_actor_inbox, &monitor_actor_address])

daemon/src/taker.rs

@@ -251,7 +251,7 @@ async fn main() -> Result<()> {
                 tokio::spawn(wallet_sync::new(wallet, wallet_feed_sender));
                 tokio::spawn(
                     oracle_actor_context
-                        .notify_interval(Duration::from_secs(60), || oracle::Sync)
+                        .notify_interval(Duration::from_secs(5), || oracle::Sync)
                         .unwrap(),
                 );
                 let actor = fan_out::Actor::new(&[&cfd_actor_inbox, &monitor_actor_address])