Switch out the Go YAML package (#1089)

This replaces direct usage of "gopkg.in/yaml.v3" with "go.yaml.in/yaml/v4".

The original package is now a dependency of the testify packages.

pkg/controller/cluster/agent/ports.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"os"
 
-	"gopkg.in/yaml.v3"
+	"go.yaml.in/yaml/v4"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/kubernetes/pkg/apis/core"
 	"k8s.io/kubernetes/pkg/registry/core/service/portallocator"

pkg/controller/cluster/agent/shared.go

@@ -5,7 +5,7 @@ import (
 	"errors"
 	"fmt"
 
-	"gopkg.in/yaml.v3"
+	"go.yaml.in/yaml/v4"
 	"k8s.io/apimachinery/pkg/util/intstr"
 
 	appsv1 "k8s.io/api/apps/v1"

pkg/controller/cluster/agent/shared_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"gopkg.in/yaml.v3"
+	"go.yaml.in/yaml/v4"
 	"k8s.io/apimachinery/pkg/api/resource"
 	"k8s.io/utils/ptr"
 

pkg/controller/cluster/agent/virtual.go

@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"strings"
 
-	"gopkg.in/yaml.v3"
+	"go.yaml.in/yaml/v4"
 	"k8s.io/utils/ptr"
 
 	appsv1 "k8s.io/api/apps/v1"

pkg/controller/cluster/agent/virtual_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"gopkg.in/yaml.v3"
+	"go.yaml.in/yaml/v4"
 	"k8s.io/apimachinery/pkg/api/resource"
 	"k8s.io/utils/ptr"
 

pkg/controller/cluster/server/config.go

@@ -3,7 +3,7 @@ package server
 import (
 	"fmt"
 
-	"gopkg.in/yaml.v3"
+	"go.yaml.in/yaml/v4"
 	"k8s.io/apimachinery/pkg/util/sets"
 
 	corev1 "k8s.io/api/core/v1"