Bump github.com/refraction-networking/utls

Bumps [github.com/refraction-networking/utls](https://github.com/refraction-networking/utls) from 0.0.0-20190909200633-43c36d3c1f57 to 1.5.3.
- [Release notes](https://github.com/refraction-networking/utls/releases)
- [Commits](https://github.com/refraction-networking/utls/commits/v1.5.3)

---
updated-dependencies:
- dependency-name: github.com/refraction-networking/utls
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -2,22 +2,23 @@ module v2ray.com/core
 
 require (
 	github.com/dgryski/go-metro v0.0.0-20180109044635-280f6062b5bc // indirect
-	github.com/golang/mock v1.4.3
-	github.com/golang/protobuf v1.4.2
-	github.com/google/go-cmp v0.5.0
+	github.com/golang/mock v1.6.0
+	github.com/golang/protobuf v1.5.3
+	github.com/google/go-cmp v0.5.9
 	github.com/gorilla/websocket v1.4.2
 	github.com/miekg/dns v1.1.29
-	github.com/refraction-networking/utls v0.0.0-20190909200633-43c36d3c1f57
+	github.com/refraction-networking/utls v1.5.3
 	github.com/seiflotfy/cuckoofilter v0.0.0-20200511222245-56093a4d3841
 	github.com/stretchr/testify v1.6.1
 	github.com/xiaokangwang/VSign v0.0.0-20200704130305-63f4b4d7a751
 	go.starlark.net v0.0.0-20190919145610-979af19b165c
-	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
-	golang.org/x/net v0.0.0-20200602114024-627f9648deb9
-	golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a
-	golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd
+	golang.org/x/crypto v0.12.0
+	golang.org/x/net v0.14.0
+	golang.org/x/sync v0.2.0
+	golang.org/x/sys v0.11.0
+	google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 // indirect
 	google.golang.org/grpc v1.30.0
-	google.golang.org/protobuf v1.25.0
+	google.golang.org/protobuf v1.28.0
 	h12.io/socks v1.0.1
 )