Update module gopkg.in/yaml.v2 to v3

Signed-off-by: Renovate Bot <bot@renovateapp.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

cmd/skopeo/sync.go

@@ -26,7 +26,7 @@ import (
 	"github.com/opencontainers/go-digest"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
-	"gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v3"
 )
 
 // syncOptions contains information retrieved from the skopeo sync command line.
@@ -134,9 +134,9 @@ See skopeo-sync(1) for details.
 // method for the tlsVerifyConfig type.
 // It unmarshals the 'tls-verify' YAML key so that, when they key is not
 // specified, tls verification is enforced.
-func (tls *tlsVerifyConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
+func (tls *tlsVerifyConfig) UnmarshalYAML(value *yaml.Node) error {
 	var verify bool
-	if err := unmarshal(&verify); err != nil {
+	if err := value.Decode(&verify); err != nil {
 		return err
 	}
 

go.mod

@@ -18,7 +18,7 @@ require (
 	github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635
 	golang.org/x/term v0.4.0
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c
-	gopkg.in/yaml.v2 v2.4.0
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
@@ -132,5 +132,5 @@ require (
 	google.golang.org/grpc v1.51.0 // indirect
 	google.golang.org/protobuf v1.28.1 // indirect
 	gopkg.in/square/go-jose.v2 v2.6.0 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 )