Update kustomize-controller API to v1beta2

Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>

pkg/manifestgen/sync/sync.go

@@ -26,7 +26,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"sigs.k8s.io/yaml"
 
-	kustomizev1 "github.com/fluxcd/kustomize-controller/api/v1beta1"
+	kustomizev1 "github.com/fluxcd/kustomize-controller/api/v1beta2"
 	"github.com/fluxcd/pkg/apis/meta"
 	sourcev1 "github.com/fluxcd/source-controller/api/v1beta1"
 
@@ -97,7 +97,6 @@ func Generate(options Options) (*manifestgen.Manifest, error) {
 				Kind: sourcev1.GitRepositoryKind,
 				Name: options.Name,
 			},
-			Validation: "client",
 		},
 	}