build(deps): bump google.golang.org/grpc from 1.22.0 to 1.23.0 (#3155)

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.22.0 to 1.23.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.22.0...v1.23.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

go.mod

@@ -61,7 +61,7 @@ require (
 	golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7 // indirect
 	google.golang.org/api v0.8.0
 	google.golang.org/genproto v0.0.0-20190701230453-710ae3a149df // indirect
-	google.golang.org/grpc v1.22.0
+	google.golang.org/grpc v1.23.0
 	gopkg.in/DataDog/dd-trace-go.v1 v1.16.1
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	k8s.io/api v0.0.0-20190313235455-40a48860b5ab

go.sum

@@ -470,6 +470,8 @@ google.golang.org/grpc v1.21.1 h1:j6XxA85m/6txkUCHvzlV5f+HBNl/1r5cZ2A/3IEFOO8=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
 google.golang.org/grpc v1.22.0 h1:J0UbZOIrCAl+fpTOf8YLs4dJo8L/owV4LYVtAXQoPkw=
 google.golang.org/grpc v1.22.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.23.0 h1:AzbTB6ux+okLTzP8Ru1Xs41C303zdcfEht7MQnYJt5A=
+google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 gopkg.in/DataDog/dd-trace-go.v1 v1.15.0 h1:2LhklnAJsRSelbnBrrE5QuRleRDkmOh2JWxOtIX6yec=
 gopkg.in/DataDog/dd-trace-go.v1 v1.15.0/go.mod h1:DVp8HmDh8PuTu2Z0fVVlBsyWaC++fzwVCaGWylTe3tg=
 gopkg.in/DataDog/dd-trace-go.v1 v1.16.0 h1:M+pIoj6uFByW3E8KaAaBmsLl3Sma3JzXZ9eo7ffyX5A=