fix: more detailed logs to differentiate shards with peers (#2794)

waku/node/peer_manager/peer_manager.nim

@@ -380,7 +380,11 @@ proc onPeerMetadata(pm: PeerManager, peerId: PeerId) {.async.} =
       pm.peerStore.hasPeer(peerId, WakuRelayCodec) and
       not metadata.shards.anyIt(pm.wakuMetadata.shards.contains(it))
     ):
-      reason = "no shards in common"
+      let myShardsString = "[ " & toSeq(pm.wakuMetadata.shards).join(", ") & "]"
+      let otherShardsString = "[ " & metadata.shards.join(", ") & "]"
+      reason =
+        "no shards in common: my_shards = " & myShardsString & " others_shards = " &
+        otherShardsString
       break guardClauses
 
     return