go mod updates for kubernetes client

* go mod download (go.sum)
* go mod updates for helm-operator package
* go mod download (helm-operator)

Signed-off-by: Kingdon Barrett <kingdon@weave.works>

go.mod

@@ -13,7 +13,7 @@ replace github.com/Azure/go-autorest => github.com/Azure/go-autorest v12.2.0+inc
 // transitive requirement from Helm Operator
 replace (
 	github.com/docker/docker => github.com/docker/docker v0.7.3-0.20190327010347-be7ac8be2ae0
-	github.com/fluxcd/helm-operator => github.com/fluxcd/helm-operator v1.2.0
+	github.com/fluxcd/helm-operator => github.com/fluxcd/helm-operator v1.4.0
 	github.com/fluxcd/helm-operator/pkg/install => github.com/fluxcd/helm-operator/pkg/install v0.0.0-20200213151218-f7e487142b46
 )
 
@@ -31,10 +31,8 @@ replace github.com/fluxcd/flux/pkg/install => ./pkg/install
 
 require (
 	github.com/Azure/azure-sdk-for-go v38.0.0+incompatible // indirect
-	github.com/Azure/go-autorest/autorest v0.9.3 // indirect
-	github.com/Azure/go-autorest/autorest/adal v0.8.1 // indirect
 	github.com/Jeffail/gabs v1.4.0
-	github.com/Masterminds/semver/v3 v3.0.3
+	github.com/Masterminds/semver/v3 v3.1.1
 	github.com/Microsoft/go-winio v0.4.16 // indirect
 	github.com/aws/aws-sdk-go v1.33.18
 	github.com/bradfitz/gomemcache v0.0.0-20190329173943-551aad21a668
@@ -48,14 +46,14 @@ require (
 	github.com/fluxcd/flux/pkg/install v0.0.0-00010101000000-000000000000
 	github.com/fluxcd/helm-operator v1.2.0
 	github.com/ghodss/yaml v1.0.0
-	github.com/go-kit/kit v0.9.0
+	github.com/go-kit/kit v0.10.0
 	github.com/golang/gddo v0.0.0-20190312205958-5a2505f3dbf0
 	github.com/google/go-cmp v0.5.4 // indirect
 	github.com/google/go-containerregistry v0.4.0
 	github.com/google/go-github/v28 v28.1.1
 	github.com/gorilla/mux v1.7.3
 	github.com/gorilla/websocket v1.4.2
-	github.com/imdario/mergo v0.3.8
+	github.com/imdario/mergo v0.3.11
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/magefile/mage v1.11.0 // indirect
 	github.com/opencontainers/go-digest v1.0.0
@@ -68,22 +66,21 @@ require (
 	github.com/sirupsen/logrus v1.8.0 // indirect
 	github.com/spf13/cobra v1.1.3
 	github.com/spf13/pflag v1.0.5
-	github.com/stretchr/testify v1.5.1
+	github.com/stretchr/testify v1.7.0
 	github.com/weaveworks/common v0.0.0-20190410110702-87611edc252e
 	github.com/weaveworks/go-checkpoint v0.0.0-20170503165305-ebbb8b0518ab
 	github.com/whilp/git-urls v0.0.0-20160530060445-31bac0d230fa
-	github.com/xeipuuv/gojsonschema v1.1.0
+	github.com/xeipuuv/gojsonschema v1.2.0
 	go.mozilla.org/sops/v3 v3.6.1
-	golang.org/x/net v0.0.0-20201110031124-69a78807bb2b // indirect
 	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
-	golang.org/x/sys v0.0.0-20210225134936-a50acf3fe073
-	golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1
+	golang.org/x/sys v0.0.0-20210426230700-d19ff857e887
+	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba
 	gopkg.in/yaml.v2 v2.4.0
 	gotest.tools/v3 v3.0.3 // indirect
-	k8s.io/api v0.19.8
-	k8s.io/apiextensions-apiserver v0.17.4
-	k8s.io/apimachinery v0.19.8
+	k8s.io/api v0.21.3
+	k8s.io/apiextensions-apiserver v0.20.4
+	k8s.io/apimachinery v0.21.3
 	k8s.io/client-go v11.0.0+incompatible
 	k8s.io/klog v1.0.0
 )