Update helm and related dependencies (#590)

Addresses the following reported vulnerabilities identified by dependabot.

CVE-2026-35206
GHSA-hr2v-4r36-88hr

Adjusts test code to address deprecations in functions identified by
golangci-lint as a result of the dependency upgrade.

Signed-off-by: Jose R. Gonzalez <komish@flutes.dev>

Author: komish

go.mod

@@ -16,16 +16,16 @@ require (
 	github.com/stretchr/testify v1.11.1
 	golang.org/x/mod v0.35.0
 	gopkg.in/yaml.v3 v3.0.1
-	helm.sh/helm/v3 v3.18.6
-	k8s.io/api v0.33.3
-	k8s.io/apimachinery v0.33.3
-	k8s.io/client-go v0.33.3
-	k8s.io/kubectl v0.33.3
+	helm.sh/helm/v3 v3.20.2
+	k8s.io/api v0.35.1
+	k8s.io/apimachinery v0.35.1
+	k8s.io/client-go v0.35.1
+	k8s.io/kubectl v0.35.1
 )
 
 require (
 	github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c // indirect
-	github.com/BurntSushi/toml v1.5.0 // indirect
+	github.com/BurntSushi/toml v1.6.0 // indirect
 	github.com/MakeNowJust/heredoc v1.0.0 // indirect
 	github.com/Masterminds/goutils v1.1.1 // indirect
 	github.com/Masterminds/semver/v3 v3.4.0 // indirect
@@ -34,18 +34,18 @@ require (
 	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
 	github.com/blang/semver/v4 v4.0.0 // indirect
 	github.com/chai2010/gettext-go v1.0.2 // indirect
-	github.com/containerd/containerd v1.7.29 // indirect
+	github.com/containerd/containerd v1.7.30 // indirect
 	github.com/containerd/errdefs v0.3.0 // indirect
 	github.com/containerd/log v0.1.0 // indirect
 	github.com/containerd/platforms v0.2.1 // indirect
-	github.com/cyphar/filepath-securejoin v0.4.1 // indirect
+	github.com/cyphar/filepath-securejoin v0.6.1 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
-	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
+	github.com/emicklei/go-restful/v3 v3.12.2 // indirect
 	github.com/evanphx/json-patch v5.9.11+incompatible // indirect
 	github.com/exponent-io/jsonpath v0.0.0-20210407135951-1de76d718b3f // indirect
 	github.com/fatih/color v1.16.0 // indirect
 	github.com/fsnotify/fsnotify v1.9.0 // indirect
-	github.com/fxamacker/cbor/v2 v2.7.0 // indirect
+	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
 	github.com/go-errors/errors v1.4.2 // indirect
 	github.com/go-gorp/gorp/v3 v3.1.0 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
@@ -54,11 +54,8 @@ require (
 	github.com/go-openapi/swag v0.23.0 // indirect
 	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
 	github.com/gobwas/glob v0.2.3 // indirect
-	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/google/btree v1.1.3 // indirect
-	github.com/google/gnostic-models v0.6.9 // indirect
-	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 // indirect
-	github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 // indirect
+	github.com/google/gnostic-models v0.7.0 // indirect
 	github.com/gosuri/uitable v0.0.4 // indirect
 	github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
@@ -83,20 +80,18 @@ require (
 	github.com/mitchellh/copystructure v1.2.0 // indirect
 	github.com/mitchellh/go-wordwrap v1.0.1 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
-	github.com/moby/spdystream v0.5.0 // indirect
 	github.com/moby/term v0.5.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
 	github.com/monochromegane/go-gitignore v0.0.0-20200626010858-205db1a8cc00 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.1.1 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
 	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
-	github.com/rubenv/sql-migrate v1.8.0 // indirect
+	github.com/rubenv/sql-migrate v1.8.1 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/sagikazarmark/locafero v0.11.0 // indirect
 	github.com/santhosh-tekuri/jsonschema/v6 v6.0.2 // indirect
@@ -109,34 +104,34 @@ require (
 	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	github.com/xlab/treeprint v1.2.0 // indirect
-	go.yaml.in/yaml/v2 v2.4.2 // indirect
+	go.yaml.in/yaml/v2 v2.4.3 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
 	golang.org/x/crypto v0.46.0 // indirect
 	golang.org/x/net v0.48.0 // indirect
 	golang.org/x/oauth2 v0.34.0 // indirect
 	golang.org/x/sync v0.19.0 // indirect
-	golang.org/x/sys v0.39.0 // indirect
-	golang.org/x/term v0.38.0 // indirect
-	golang.org/x/text v0.32.0 // indirect
+	golang.org/x/sys v0.40.0 // indirect
+	golang.org/x/term v0.39.0 // indirect
+	golang.org/x/text v0.33.0 // indirect
 	golang.org/x/time v0.12.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 // indirect
 	google.golang.org/grpc v1.79.3 // indirect
 	google.golang.org/protobuf v1.36.10 // indirect
-	gopkg.in/evanphx/json-patch.v4 v4.12.0 // indirect
+	gopkg.in/evanphx/json-patch.v4 v4.13.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
-	k8s.io/apiextensions-apiserver v0.33.3 // indirect
-	k8s.io/apiserver v0.33.3 // indirect
-	k8s.io/cli-runtime v0.33.3 // indirect
-	k8s.io/component-base v0.33.3 // indirect
+	k8s.io/apiextensions-apiserver v0.35.1 // indirect
+	k8s.io/apiserver v0.35.1 // indirect
+	k8s.io/cli-runtime v0.35.1 // indirect
+	k8s.io/component-base v0.35.1 // indirect
 	k8s.io/klog/v2 v2.130.1 // indirect
-	k8s.io/kube-openapi v0.0.0-20250318190949-c8a335a9a2ff // indirect
-	k8s.io/utils v0.0.0-20241104100929-3ea5e8cea738 // indirect
+	k8s.io/kube-openapi v0.0.0-20250910181357-589584f1c912 // indirect
+	k8s.io/utils v0.0.0-20251002143259-bc988d571ff4 // indirect
 	oras.land/oras-go/v2 v2.6.0 // indirect
-	sigs.k8s.io/json v0.0.0-20241010143419-9aa6b5e7a4b3 // indirect
-	sigs.k8s.io/kustomize/api v0.19.0 // indirect
-	sigs.k8s.io/kustomize/kyaml v0.19.0 // indirect
+	sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 // indirect
+	sigs.k8s.io/kustomize/api v0.20.1 // indirect
+	sigs.k8s.io/kustomize/kyaml v0.20.1 // indirect
 	sigs.k8s.io/randfill v1.0.0 // indirect
-	sigs.k8s.io/structured-merge-diff/v4 v4.6.0 // indirect
-	sigs.k8s.io/yaml v1.5.0 // indirect
+	sigs.k8s.io/structured-merge-diff/v6 v6.3.0 // indirect
+	sigs.k8s.io/yaml v1.6.0 // indirect
 )