Bump k8s.io/client-go

Bumps [k8s.io/client-go](https://github.com/kubernetes/client-go) from 0.0.0-20190620085101-78d2af792bab to 0.20.0-alpha.2.
- [Release notes](https://github.com/kubernetes/client-go/releases)
- [Commits](https://github.com/kubernetes/client-go/commits/v0.20.0-alpha.2)

---
updated-dependencies:
- dependency-name: k8s.io/client-go
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -6,46 +6,38 @@ require (
 	github.com/AdhityaRamadhanus/fasthttpcors v0.0.0-20170121111917-d4c07198763a
 	github.com/Sirupsen/logrus v1.0.6
 	github.com/cenkalti/backoff v2.2.1+incompatible
-	github.com/creack/pty v1.1.9 // indirect
 	github.com/dapr/components-contrib v0.0.0-20191108224343-bd36a6759fe4
 	github.com/emicklei/go-restful v2.10.0+incompatible // indirect
-	github.com/evanphx/json-patch v4.2.0+incompatible // indirect
 	github.com/ghodss/yaml v1.0.0
 	github.com/go-openapi/jsonreference v0.19.3 // indirect
 	github.com/go-openapi/spec v0.19.3 // indirect
 	github.com/go-ozzo/ozzo-routing v2.1.4+incompatible // indirect
-	github.com/gogo/protobuf v1.3.0 // indirect
 	github.com/golang/gddo v0.0.0-20190815223733-287de01127ef // indirect
-	github.com/golang/protobuf v1.3.2
+	github.com/golang/protobuf v1.4.2
 	github.com/google/uuid v1.1.1
-	github.com/googleapis/gnostic v0.3.1 // indirect
 	github.com/gorilla/mux v1.7.1
 	github.com/grandcat/zeroconf v0.0.0-20190424104450-85eadb44205c
 	github.com/grpc-ecosystem/go-grpc-middleware v1.1.0
 	github.com/imdario/mergo v0.3.7 // indirect
-	github.com/json-iterator/go v1.1.7
+	github.com/json-iterator/go v1.1.10
 	github.com/kelseyhightower/envconfig v1.4.0
 	github.com/klauspost/compress v1.5.0 // indirect
 	github.com/klauspost/cpuid v1.2.1 // indirect
-	github.com/kr/pty v1.1.8 // indirect
 	github.com/mailru/easyjson v0.7.0 // indirect
 	github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1
 	github.com/mitchellh/mapstructure v1.1.2
-	github.com/onsi/ginkgo v1.10.1 // indirect
-	github.com/onsi/gomega v1.7.0 // indirect
 	github.com/phayes/freeport v0.0.0-20171002181615-b8543db493a5
 	github.com/qiangxue/fasthttp-routing v0.0.0-20160225050629-6ccdc2a18d87
 	github.com/stretchr/testify v1.4.0
+	github.com/tidwall/pretty v1.2.1 // indirect
 	github.com/valyala/fasthttp v1.4.0
-	go.opencensus.io v0.22.1
+	go.opencensus.io v0.22.2
 	gonum.org/v1/gonum v0.0.0-20190911200027-40d3308efe80 // indirect
-	google.golang.org/grpc v1.24.0
-	gopkg.in/yaml.v2 v2.2.2
-	k8s.io/api v0.0.0-20190819141258-3544db3b9e44
-	k8s.io/apimachinery v0.0.0-20190817020851-f2f3a405f61d
-	k8s.io/client-go v0.0.0-20190620085101-78d2af792bab
+	google.golang.org/grpc v1.27.0
+	gopkg.in/yaml.v2 v2.2.8
+	k8s.io/api v0.20.0-alpha.2
+	k8s.io/apimachinery v0.20.0-alpha.2
+	k8s.io/client-go v0.20.0-alpha.2
 	k8s.io/code-generator v0.0.0-20190912042602-ebc0eb3a5c23
-	k8s.io/gengo v0.0.0-20190907103519-ebc107f98eab // indirect
 	k8s.io/klog v0.4.0
-	k8s.io/utils v0.0.0-20190506122338-8fab8cb257d5 // indirect
 )