fix(pubsub): flood publish

When publishing a value, flood. This ensures that our messages make it to the
network even if some of our peers are bad and/or overloaded.

core/node/libp2p/pubsub.go

@@ -17,6 +17,10 @@ func FloodSub(pubsubOptions ...pubsub.Option) interface{} {
 
 func GossipSub(pubsubOptions ...pubsub.Option) interface{} {
 	return func(mctx helpers.MetricsCtx, lc fx.Lifecycle, host host.Host, disc discovery.Discovery) (service *pubsub.PubSub, err error) {
-		return pubsub.NewGossipSub(helpers.LifecycleCtx(mctx, lc), host, append(pubsubOptions, pubsub.WithDiscovery(disc))...)
+		return pubsub.NewGossipSub(helpers.LifecycleCtx(mctx, lc), host, append(
+			pubsubOptions,
+			pubsub.WithDiscovery(disc),
+			pubsub.WithFloodPublish(true))...,
+		)
 	}
 }