diff: ignore kind and apiVersion when diffing

Author: chrischdi

pkg/util/diff.go

@@ -197,6 +197,8 @@ func (d *differ) Diff(a, b client.Object) (DiffResult, error) {
 func NewDefaultDiffer(opts ...diffopts) *differ {
 	return newDiffer(append(opts,
 		// Options for handling of metadata fields.
+		WithIgnoreField("kind"),
+		WithIgnoreField("apiVersion"),
 
 		// Special handling for Cluster API's conversion-data label.
 		WithIgnoreField("metadata", "annotations", "cluster.x-k8s.io/conversion-data"),