dra api: rename NodeResourceSlice -> ResourceSlice

While currently those objects only get published by the kubelet for node-local
resources, this could change once we also support network-attached
resources. Dropping the "Node" prefix enables such a future extension.

The NodeName in ResourceSlice and StructuredResourceHandle then becomes
optional. The kubelet still needs to provide one and it must match its own node
name, otherwise it doesn't have permission to access ResourceSlice objects.

pkg/scheduler/framework/plugins/dynamicresources/structuredparameters.go

@@ -44,10 +44,10 @@ type resourceModels struct {
 // with an unknown structured parameter model silently ignored. An error gets
 // logged later when parameters required for a pod depend on such an unknown
 // model.
-func newResourceModel(logger klog.Logger, nodeResourceSliceLister resourcev1alpha2listers.NodeResourceSliceLister, claimAssumeCache volumebinding.AssumeCache) (resources, error) {
+func newResourceModel(logger klog.Logger, resourceSliceLister resourcev1alpha2listers.ResourceSliceLister, claimAssumeCache volumebinding.AssumeCache) (resources, error) {
 	model := make(resources)
 
-	slices, err := nodeResourceSliceLister.List(labels.Everything())
+	slices, err := resourceSliceLister.List(labels.Everything())
 	if err != nil {
 		return nil, fmt.Errorf("list node resource slices: %w", err)
 	}