[Security] Bump github.com/gogo/protobuf from 1.2.1 to 1.3.2

Bumps [github.com/gogo/protobuf](https://github.com/gogo/protobuf) from 1.2.1 to 1.3.2. **This update includes a security fix.**
- [Release notes](https://github.com/gogo/protobuf/releases)
- [Commits](https://github.com/gogo/protobuf/compare/v1.2.1...v1.3.2)

go.mod

@@ -4,7 +4,7 @@ go 1.12
 
 require (
 	github.com/ghodss/yaml v1.0.0 // indirect
-	github.com/gogo/protobuf v1.2.1 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b // indirect
 	github.com/golang/protobuf v1.3.0 // indirect
 	github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c // indirect
@@ -15,8 +15,8 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
-	golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 // indirect
-	golang.org/x/net v0.0.0-20190311031020-56fb01167e7d // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/stretchr/testify v1.8.2 // indirect
 	golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421 // indirect
 	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect