feat(dht)!: update republish interval and expiration time defaults

This patch applies changes from libp2p/specs#451. In particular, the new defaults are:

- Record Expiration: 48h
- Record Republish Interval: 22h

Closes #3229.

Pull-Request: #3230.

protocols/kad/CHANGELOG.md

@@ -2,6 +2,8 @@
 
 - Changed `FIND_NODE` response: now includes a list of closest peers when querying the recipient peer ID. Previously, this request yielded an empty response.
   See [PR 5270](https://github.com/libp2p/rust-libp2p/pull/5270)
+- Update to DHT republish interval and expiration time defaults to 22h and 48h respectively, rationale in [libp2p/specs#451](https://github.com/libp2p/specs/pull/451)
+  See [PR 3230](https://github.com/libp2p/rust-libp2p/pull/3230)
 
 ## 0.45.4
 

protocols/kad/src/behaviour.rs

@@ -220,12 +220,12 @@ impl Config {
             kbucket_pending_timeout: Duration::from_secs(60),
             query_config: QueryConfig::default(),
             protocol_config: ProtocolConfig::new(protocol_name),
-            record_ttl: Some(Duration::from_secs(36 * 60 * 60)),
+            record_ttl: Some(Duration::from_secs(48 * 60 * 60)),
             record_replication_interval: Some(Duration::from_secs(60 * 60)),
-            record_publication_interval: Some(Duration::from_secs(24 * 60 * 60)),
+            record_publication_interval: Some(Duration::from_secs(22 * 60 * 60)),
             record_filtering: StoreInserts::Unfiltered,
             provider_publication_interval: Some(Duration::from_secs(12 * 60 * 60)),
-            provider_record_ttl: Some(Duration::from_secs(24 * 60 * 60)),
+            provider_record_ttl: Some(Duration::from_secs(48 * 60 * 60)),
             kbucket_inserts: BucketInserts::OnConnected,
             caching: Caching::Enabled { max_peers: 1 },
             periodic_bootstrap_interval: Some(Duration::from_secs(5 * 60)),