Update module k8s.io/api to v0.28.1

tests/go.mod

@@ -1,10 +1,43 @@
 module test
 
-go 1.16
+go 1.20
 
 require (
 	github.com/instrumenta/kubeval v0.16.1
-	github.com/stretchr/testify v1.7.0
-	k8s.io/api v0.21.1
-	sigs.k8s.io/yaml v1.2.0
+	github.com/stretchr/testify v1.8.2
+	k8s.io/api v0.28.1
+	sigs.k8s.io/yaml v1.3.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/fatih/color v1.10.0 // indirect
+	github.com/go-logr/logr v1.2.4 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/hashicorp/errwrap v1.0.0 // indirect
+	github.com/hashicorp/go-multierror v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/mattn/go-colorable v0.1.8 // indirect
+	github.com/mattn/go-isatty v0.0.12 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/spf13/cobra v0.0.0-20180820174524-ff0d02e85550 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f // indirect
+	github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
+	github.com/xeipuuv/gojsonschema v0.0.0-20180816142147-da425ebb7609 // indirect
+	golang.org/x/net v0.13.0 // indirect
+	golang.org/x/sys v0.10.0 // indirect
+	golang.org/x/text v0.11.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/apimachinery v0.28.1 // indirect
+	k8s.io/klog/v2 v2.100.1 // indirect
+	k8s.io/utils v0.0.0-20230406110748-d93618cff8a2 // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
 )