Fix kubernetes_node_pool table to correctly fetch node-pools when Aut…

…oPilot is not available (#668)

gcp/table_gcp_kubernetes_node_pool.go

@@ -151,7 +151,7 @@ func listKubernetesNodePools(ctx context.Context, d *plugin.QueryData, h *plugin
 	// This operation is not allowed if the cluster has Autopilot Enabled.
 	// We are getting the error Error: gcp: googleapi: Error 400: Autopilot node pools cannot be accessed or modified.
 
-	if cluster.Autopilot.Enabled {
+	if cluster.Autopilot != nil && cluster.Autopilot.Enabled {
 		return nil, nil
 	}