remove direct dependency on github/pkg/errors (#4970)

plugin/someteam.example.com/v1/dateprefixer/DatePrefixer.go

@@ -8,10 +8,10 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/pkg/errors"
 	"sigs.k8s.io/kustomize/api/builtins"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/kyaml/errors"
 	"sigs.k8s.io/yaml"
 )
 
@@ -39,13 +39,13 @@ func (p *plugin) Config(h *resmap.PluginHelpers, _ []byte) error {
 	// Ignore the incoming c, compute new config.
 	c, err := p.makePrefixPluginConfig()
 	if err != nil {
-		return errors.Wrapf(
+		return errors.WrapPrefixf(
 			err, "dateprefixer makeconfig")
 	}
 	prefixer := builtins.NewPrefixTransformerPlugin()
 	err = prefixer.Config(h, c)
 	if err != nil {
-		return errors.Wrapf(
+		return errors.WrapPrefixf(
 			err, "prefix configure")
 	}
 	p.t = prefixer