dep: update go-libp2p

* Write coalescing in yamux and mplex.
* Correctly tag relay streams.
* Reset relay streams instead of closing them. Fixes #6237.
* Trim connections in a background task instead of on-connect.

core/node/libp2p/smux.go

 package libp2p
 
 import (
-	"io/ioutil"
 	"os"
 	"strings"
-	"time"
 
 	"github.com/libp2p/go-libp2p"
+	mplex "github.com/libp2p/go-libp2p-mplex"
+	yamux "github.com/libp2p/go-libp2p-yamux"
 	smux "github.com/libp2p/go-stream-muxer"
-	mplex "github.com/whyrusleeping/go-smux-multiplex"
-	yamux "github.com/whyrusleeping/go-smux-yamux"
 )
 
 func makeSmuxTransportOption(mplexExp bool) libp2p.Option {
 	const yamuxID = "/yamux/1.0.0"
 	const mplexID = "/mplex/6.7.0"
 
-	ymxtpt := &yamux.Transport{
-		AcceptBacklog:          512,
-		ConnectionWriteTimeout: time.Second * 10,
-		KeepAliveInterval:      time.Second * 30,
-		EnableKeepAlive:        true,
-		MaxStreamWindowSize:    uint32(16 * 1024 * 1024), // 16MiB
-		LogOutput:              ioutil.Discard,
-	}
+	ymxtpt := *yamux.DefaultTransport
+	ymxtpt.AcceptBacklog = 512
 
 	if os.Getenv("YAMUX_DEBUG") != "" {
 		ymxtpt.LogOutput = os.Stderr
 	}
 
-	muxers := map[string]smux.Transport{yamuxID: ymxtpt}
+	muxers := map[string]smux.Transport{yamuxID: &ymxtpt}
 	if mplexExp {
 		muxers[mplexID] = mplex.DefaultTransport
 	}

go.mod

@@ -63,17 +63,18 @@ require (
 	github.com/jbenet/go-random-files v0.0.0-20190219210431-31b3f20ebded
 	github.com/jbenet/go-temp-err-catcher v0.0.0-20150120210811-aac704a3f4f2
 	github.com/jbenet/goprocess v0.1.3
-	github.com/libp2p/go-libp2p v0.0.24
+	github.com/libp2p/go-libp2p v0.0.28
 	github.com/libp2p/go-libp2p-autonat-svc v0.0.5
-	github.com/libp2p/go-libp2p-circuit v0.0.6
-	github.com/libp2p/go-libp2p-connmgr v0.0.4
+	github.com/libp2p/go-libp2p-circuit v0.0.8
+	github.com/libp2p/go-libp2p-connmgr v0.0.5
 	github.com/libp2p/go-libp2p-crypto v0.0.2
 	github.com/libp2p/go-libp2p-host v0.0.3
-	github.com/libp2p/go-libp2p-interface-connmgr v0.0.4
-	github.com/libp2p/go-libp2p-kad-dht v0.0.11
+	github.com/libp2p/go-libp2p-interface-connmgr v0.0.5
+	github.com/libp2p/go-libp2p-kad-dht v0.0.13
 	github.com/libp2p/go-libp2p-kbucket v0.1.1
 	github.com/libp2p/go-libp2p-loggables v0.0.1
 	github.com/libp2p/go-libp2p-metrics v0.0.1
+	github.com/libp2p/go-libp2p-mplex v0.1.1
 	github.com/libp2p/go-libp2p-net v0.0.2
 	github.com/libp2p/go-libp2p-peer v0.1.1
 	github.com/libp2p/go-libp2p-peerstore v0.0.6
@@ -86,16 +87,15 @@ require (
 	github.com/libp2p/go-libp2p-routing v0.0.1
 	github.com/libp2p/go-libp2p-routing-helpers v0.0.2
 	github.com/libp2p/go-libp2p-secio v0.0.3
-	github.com/libp2p/go-libp2p-swarm v0.0.3
+	github.com/libp2p/go-libp2p-swarm v0.0.6
 	github.com/libp2p/go-libp2p-tls v0.0.1
+	github.com/libp2p/go-libp2p-yamux v0.1.2
 	github.com/libp2p/go-maddr-filter v0.0.4
-	github.com/libp2p/go-mplex v0.0.2 // indirect
 	github.com/libp2p/go-stream-muxer v0.0.1
 	github.com/libp2p/go-testutil v0.0.1
 	github.com/mattn/go-isatty v0.0.7 // indirect
 	github.com/mattn/go-runewidth v0.0.4 // indirect
 	github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b // indirect
-	github.com/miekg/dns v1.1.10 // indirect
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/mr-tron/base58 v1.1.2
 	github.com/multiformats/go-multiaddr v0.0.4
@@ -103,15 +103,12 @@ require (
 	github.com/multiformats/go-multiaddr-net v0.0.1
 	github.com/multiformats/go-multibase v0.0.1
 	github.com/multiformats/go-multihash v0.0.5
-	github.com/multiformats/go-multistream v0.0.4 // indirect
 	github.com/opentracing/opentracing-go v1.1.0
 	github.com/pkg/errors v0.8.1
 	github.com/prometheus/client_golang v0.9.3
 	github.com/prometheus/procfs v0.0.0-20190519111021-9935e8e0588d // indirect
 	github.com/syndtr/goleveldb v1.0.0
 	github.com/whyrusleeping/base32 v0.0.0-20170828182744-c30ac30633cc
-	github.com/whyrusleeping/go-smux-multiplex v3.0.16+incompatible
-	github.com/whyrusleeping/go-smux-yamux v2.0.9+incompatible
 	github.com/whyrusleeping/go-sysinfo v0.0.0-20190219211824-4a357d4b90b1
 	github.com/whyrusleeping/multiaddr-filter v0.0.0-20160516205228-e903e4adabd7
 	github.com/whyrusleeping/tar-utils v0.0.0-20180509141711-8c6c8ba81d5c