give error some context

Signed-off-by: Zach Aller <zachaller@users.noreply.github.com>

Author: zachaller

rollout/ephemeralmetadata.go

@@ -84,7 +84,7 @@ func (c *rolloutContext) syncEphemeralMetadata(ctx context.Context, rs *appsv1.R
 	// 2. Update ReplicaSet so that any new pods it creates will have the metadata
 	rs, err = c.kubeclientset.AppsV1().ReplicaSets(modifiedRS.Namespace).Update(ctx, modifiedRS, metav1.UpdateOptions{})
 	if err != nil {
-		return err
+		return fmt.Errorf("error updating replicaset in syncEphemeralMetadata: %w", err)
 	}
 	err = c.replicaSetInformer.GetIndexer().Update(rs)
 	if err != nil {