improve CreatePeerNoValidate error message (#2133)

customer currently hitting this error, want to be sure what kind of config is actually being received

Author: serprex

flow/connectors/utils/peers.go

@@ -22,8 +22,8 @@ func CreatePeerNoValidate(
 	peerType := peer.Type
 	wrongConfigResponse := &protos.CreatePeerResponse{
 		Status: protos.CreatePeerStatus_FAILED,
-		Message: fmt.Sprintf("invalid config for %s peer %s",
-			peerType, peer.Name),
+		Message: fmt.Sprintf("invalid config for %s peer %s: %T",
+			peerType, peer.Name, config),
 	}
 	var innerConfig proto.Message
 	switch peerType {