Merge pull request #50230 from corhere/backport-25.0/libn/fix-networkdb-dns-update-delete

[25.0 backport] libnetwork: fix flaky Swarm service DNS
diff --git a/libnetwork/agent.go b/libnetwork/agent.go
index 7f66002..4ffe66f 100644
--- a/libnetwork/agent.go
+++ b/libnetwork/agent.go
@@ -836,7 +836,7 @@
 		tname = event.Table
 		key = event.Key
 		value = event.Value
-		etype = driverapi.Delete
+		etype = driverapi.Update
 	}
 
 	d.EventNotify(etype, n.ID(), tname, key, value)