style: update quic-go

Change-Id: Id85a9abb1e62fd239a31a305cef3c1b56e306b79

go.mod

@@ -5,15 +5,15 @@ go 1.14
 require (
 	git.apache.org/thrift.git v0.13.0
 	github.com/gogo/protobuf v1.2.1
-	github.com/golang/protobuf v1.3.1
+	github.com/golang/protobuf v1.4.2
 	github.com/henrylee2cn/cfgo v0.0.0-20180417024816-e6c3cc325b21
 	github.com/henrylee2cn/goutil v0.0.0-20200416032639-974f5b4094a2
 	github.com/kavu/go_reuseport v1.4.0 // indirect
-	github.com/lucas-clemente/quic-go v0.15.5
+	github.com/lucas-clemente/quic-go v0.18.0
 	github.com/montanaflynn/stats v0.5.0
 	github.com/stretchr/testify v1.4.0
 	github.com/tidwall/evio v1.0.7
 	github.com/tidwall/gjson v1.2.2
 	github.com/xtaci/kcp-go/v5 v5.5.12
-	golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae
+	golang.org/x/sys v0.0.0-20200519105757-fe76b779f299
 )