fix(net): add None disconnect reason on PoS p2p violation

crates/net/network/src/manager.rs

@@ -237,7 +237,7 @@ where
         // reject message in POS
         if self.handle.mode().is_stake() {
             // connections to peers which send invalid messages should be terminated
-            self.swarm.sessions_mut().disconnect(peer_id);
+            self.swarm.sessions_mut().disconnect(peer_id, None);
         } else {
             only_pow(self);
         }