fix: update peers ENRs in peer store in case they are updated (#2818)

waku/node/peer_manager/peer_manager.nim

@@ -128,9 +128,16 @@ proc addPeer*(pm: PeerManager, remotePeerInfo: RemotePeerInfo, origin = UnknownO
   if pm.peerStore[AddressBook][remotePeerInfo.peerId] == remotePeerInfo.addrs and
       pm.peerStore[KeyBook][remotePeerInfo.peerId] == remotePeerInfo.publicKey and
       pm.peerStore[ENRBook][remotePeerInfo.peerId].raw.len > 0:
-    trace "peer already managed and ENR info is already saved",
-      remote_peer_id = $remotePeerInfo.peerId
-    return
+    let incomingEnr = remotePeerInfo.enr.valueOr:
+      trace "peer already managed and incoming ENR is empty",
+        remote_peer_id = $remotePeerInfo.peerId
+      return
+
+    if pm.peerStore[ENRBook][remotePeerInfo.peerId].raw == incomingEnr.raw or
+        pm.peerStore[ENRBook][remotePeerInfo.peerId].seqNum > incomingEnr.seqNum:
+      trace "peer already managed and ENR info is already saved",
+        remote_peer_id = $remotePeerInfo.peerId
+      return
 
   trace "Adding peer to manager",
     peerId = remotePeerInfo.peerId, addresses = remotePeerInfo.addrs