Bump google.golang.org/grpc from 1.21.0 to 1.56.3

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.21.0 to 1.56.3.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](grpc/grpc-go@v1.21.0...v1.56.3)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
...

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

go.mod

@@ -2,100 +2,60 @@ go 1.12
 
 require (
 	bou.ke/monkey v1.0.2
-	github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible
-	github.com/Masterminds/semver v1.4.2
-	github.com/PuerkitoBio/purell v1.1.1
-	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578
-	github.com/TomOnTime/utfutil v0.0.0-20180511104225-09c41003ee1d
+	github.com/Masterminds/semver v1.4.2 // indirect
+	github.com/PuerkitoBio/purell v1.1.1 // indirect
+	github.com/TomOnTime/utfutil v0.0.0-20180511104225-09c41003ee1d // indirect
 	github.com/argoproj/argo-cd v0.0.0-20190605212330-23ad098aa997
-	github.com/argoproj/pkg v0.0.0-20190409001913-7e3ef65c8d44
-	github.com/casbin/casbin v1.8.2
-	github.com/coreos/go-oidc v2.0.0+incompatible
-	github.com/davecgh/go-spew v1.1.1
-	github.com/dgrijalva/jwt-go v3.2.0+incompatible
-	github.com/emicklei/go-restful v2.9.5+incompatible
-	github.com/emirpasic/gods v1.12.0
-	github.com/evanphx/json-patch v3.0.0+incompatible
-	github.com/ghodss/yaml v1.0.0
-	github.com/go-openapi/jsonpointer v0.19.0
-	github.com/go-openapi/jsonreference v0.19.0
-	github.com/go-openapi/spec v0.19.0
-	github.com/go-openapi/swag v0.19.0
-	github.com/go-redis/cache v6.4.0+incompatible
-	github.com/go-redis/redis v0.0.0-20190503082931-75795aa4236d
-	github.com/gobuffalo/envy v1.7.0
-	github.com/gobuffalo/packd v0.1.0
-	github.com/gobuffalo/packr v1.25.0
-	github.com/gobuffalo/syncx v0.0.0-20190224160051-33c29581e754
-	github.com/gobwas/glob v0.2.3
-	github.com/gogo/protobuf v1.2.1
-	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
-	github.com/golang/protobuf v1.3.1
-	github.com/google/btree v1.0.0
-	github.com/google/go-jsonnet v0.12.1
-	github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf
-	github.com/google/pprof v0.0.0-20200507031123-427632fa3b1c // indirect
-	github.com/googleapis/gnostic v0.0.0-20170729233727-0c5108395e2d
-	github.com/gregjones/httpcache v0.0.0-20190212212710-3befbb6ad0cc
-	github.com/grpc-ecosystem/go-grpc-middleware v1.0.0
-	github.com/grpc-ecosystem/grpc-gateway v1.9.0
-	github.com/hashicorp/golang-lru v0.5.1
-	github.com/ianlancetaylor/demangle v0.0.0-20200414190113-039b1ae3a340 // indirect
-	github.com/imdario/mergo v0.3.5
-	github.com/inconshreveable/mousetrap v1.0.0
-	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99
-	github.com/joho/godotenv v1.3.0
-	github.com/json-iterator/go v0.0.0-20180701071628-ab8a2e0c74be
-	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
-	github.com/kevinburke/ssh_config v0.0.0-20180830205328-81db2a75821e
-	github.com/konsorten/go-windows-terminal-sequences v1.0.2
-	github.com/mailru/easyjson v0.0.0-20190403194419-1ea4449da983
-	github.com/mitchellh/go-homedir v1.1.0
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd
-	github.com/modern-go/reflect2 v1.0.1
-	github.com/patrickmn/go-cache v2.1.0+incompatible
-	github.com/pelletier/go-buffruneio v0.2.0
-	github.com/petar/GoLLRB v0.0.0-20190514000832-33fb24c13b99
+	github.com/argoproj/pkg v0.0.0-20190409001913-7e3ef65c8d44 // indirect
+	github.com/coreos/go-oidc v2.0.0+incompatible // indirect
+	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
+	github.com/emicklei/go-restful v2.9.5+incompatible // indirect
+	github.com/emirpasic/gods v1.12.0 // indirect
+	github.com/evanphx/json-patch v3.0.0+incompatible // indirect
+	github.com/go-openapi/jsonpointer v0.19.0 // indirect
+	github.com/go-openapi/jsonreference v0.19.0 // indirect
+	github.com/go-openapi/spec v0.19.0 // indirect
+	github.com/go-openapi/swag v0.19.0 // indirect
+	github.com/go-redis/cache v6.4.0+incompatible // indirect
+	github.com/go-redis/redis v0.0.0-20190503082931-75795aa4236d // indirect
+	github.com/gobwas/glob v0.2.3 // indirect
+	github.com/gogo/protobuf v1.2.1 // indirect
+	github.com/google/go-jsonnet v0.12.1 // indirect
+	github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf // indirect
+	github.com/googleapis/gnostic v0.0.0-20170729233727-0c5108395e2d // indirect
+	github.com/gregjones/httpcache v0.0.0-20190212212710-3befbb6ad0cc // indirect
+	github.com/grpc-ecosystem/go-grpc-middleware v1.0.0 // indirect
+	github.com/imdario/mergo v0.3.5 // indirect
+	github.com/json-iterator/go v0.0.0-20180701071628-ab8a2e0c74be // indirect
+	github.com/k0kubun/colorstring v0.0.0-20150214042306-9440f1994b88 // indirect
+	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
+	github.com/mailru/easyjson v0.0.0-20190403194419-1ea4449da983 // indirect
+	github.com/malexdev/utfutil v0.0.0-20180510171754-00c8d4a8e7a8 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/modern-go/reflect2 v1.0.1 // indirect
+	github.com/patrickmn/go-cache v2.1.0+incompatible // indirect
 	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
-	github.com/pkg/errors v0.8.1
-	github.com/pmezard/go-difflib v1.0.0
-	github.com/pquerna/cachecontrol v0.0.0-20180517163645-1555304b9b35
-	github.com/rogpeppe/go-internal v1.3.0
-	github.com/sergi/go-diff v1.0.0
+	github.com/pquerna/cachecontrol v0.0.0-20180517163645-1555304b9b35 // indirect
 	github.com/sirupsen/logrus v1.4.2
 	github.com/spf13/cobra v0.0.4
 	github.com/spf13/pflag v1.0.3
-	github.com/src-d/gcfg v1.4.0
-	github.com/stretchr/testify v1.3.0
-	github.com/vmihailenco/msgpack v4.0.4+incompatible
-	github.com/xanzy/ssh-agent v0.2.1
-	github.com/yudai/gojsondiff v0.0.0-20180504020246-0525c875b75c
-	github.com/yudai/golcs v0.0.0-20170316035057-ecda9a501e82
-	github.com/yuin/gopher-lua v0.0.0-20190514113301-1cd887cd7036
-	golang.org/x/arch v0.0.0-20200511175325-f7c78586839d // indirect
-	golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2
-	golang.org/x/net v0.0.0-20190522155817-f3200d17e092
-	golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be
-	golang.org/x/sync v0.0.0-20190423024810-112230192c58
-	golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e
-	golang.org/x/text v0.3.2
-	golang.org/x/time v0.0.0-20161028155119-f51c12702a4d
-	google.golang.org/appengine v1.6.0
-	google.golang.org/genproto v0.0.0-20190530194941-fb225487d101
-	google.golang.org/grpc v1.21.0
-	gopkg.in/inf.v0 v0.9.0
-	gopkg.in/square/go-jose.v2 v2.3.1
-	gopkg.in/src-d/go-billy.v4 v4.3.0
-	gopkg.in/src-d/go-git.v4 v4.11.0
-	gopkg.in/warnings.v0 v0.1.2
-	gopkg.in/yaml.v2 v2.2.2
-	k8s.io/api v0.0.0-20181128191700-6db15a15d2d3
+	github.com/stretchr/testify v1.8.3
+	github.com/vmihailenco/msgpack v4.0.4+incompatible // indirect
+	github.com/xanzy/ssh-agent v0.2.1 // indirect
+	github.com/yudai/gojsondiff v0.0.0-20180504020246-0525c875b75c // indirect
+	github.com/yudai/golcs v0.0.0-20170316035057-ecda9a501e82 // indirect
+	github.com/yudai/pp v2.0.1+incompatible // indirect
+	google.golang.org/grpc v1.56.3 // indirect
+	gopkg.in/inf.v0 v0.9.0 // indirect
+	gopkg.in/square/go-jose.v2 v2.3.1 // indirect
+	gopkg.in/src-d/go-billy.v4 v4.3.0 // indirect
+	gopkg.in/src-d/go-git.v4 v4.11.0 // indirect
+	k8s.io/api v0.0.0-20181128191700-6db15a15d2d3 // indirect
 	k8s.io/apimachinery v0.0.0-20190221084156-01f179d85dbc
 	k8s.io/cli-runtime v0.0.0-20190325152055-8dd0d0ccf4ca
 	k8s.io/client-go v0.0.0-20190518070419-b6aa6aafe32b
-	k8s.io/kube-openapi v0.0.0-20190530181030-b52b5b0f5a7c
-	k8s.io/kubernetes v1.13.6
-	layeh.com/gopher-json v0.0.0-20190114024228-97fed8db8427
+	k8s.io/kube-openapi v0.0.0-20190530181030-b52b5b0f5a7c // indirect
+	k8s.io/kubernetes v1.13.6 // indirect
 )
 
 module github.com/keikoproj/cd-guard