Auto-update dependencies

Produced via:
  `./hack/update-deps.sh --upgrade && ./hack/update-codegen.sh`
/assign maximilien rhuss
/cc maximilien rhuss

go.mod

@@ -1,32 +1,5 @@
 module knative.dev/client
 
-require (
-	contrib.go.opencensus.io/exporter/ocagent v0.6.0 // indirect
-	contrib.go.opencensus.io/exporter/prometheus v0.1.0 // indirect
-	contrib.go.opencensus.io/exporter/stackdriver v0.13.0 // indirect
-	github.com/google/go-containerregistry v0.0.0-20200304201134-fcc8ea80e26f // indirect
-	github.com/magiconair/properties v1.8.0
-	github.com/mitchellh/go-homedir v1.1.0
-	github.com/openzipkin/zipkin-go v0.2.2 // indirect
-	github.com/pkg/errors v0.8.1
-	github.com/robfig/cron v1.2.0 // indirect
-	github.com/spf13/cobra v0.0.5
-	github.com/spf13/pflag v1.0.5
-	github.com/spf13/viper v1.4.0
-	golang.org/x/crypto v0.0.0-20191206172530-e9b2fee46413
-	gomodules.xyz/jsonpatch/v2 v2.1.0 // indirect
-	gotest.tools v2.2.0+incompatible
-	k8s.io/api v0.17.0
-	k8s.io/apimachinery v0.17.0
-	k8s.io/cli-runtime v0.17.0
-	k8s.io/client-go v0.17.0
-	knative.dev/eventing v0.13.1
-	knative.dev/pkg v0.0.0-20200304185554-312b1be35ceb
-	knative.dev/serving v0.13.0
-	knative.dev/test-infra v0.0.0-20200229011351-4dac123b9a3d
-	sigs.k8s.io/yaml v1.1.0
-)
-
 // Temporary pinning certain libraries. Please check periodically, whether these are still needed
 // ----------------------------------------------------------------------------------------------