Add h2o, vcl on compute, and all billing metrics
The following new metrics have been added: ddos_action_downgrade, ddos_action_downgraded_connections, vcl_on_compute_hit_requests, vcl_on_compute_miss_requests, vcl_on_compute_pass_requests, vcl_on_compute_error_requests, vcl_on_compute_synth_requests, vcl_on_compute_edge_hit_requests, vcl_on_compute_edge_miss_requests, all_hit_requests, all_miss_requests, all_pass_requests, all_error_requests, all_synth_requests, all_edge_hit_requests, all_edge_miss_requests, all_status_1xx, all_status_2xx, all_status_3xx, all_status_4xx, and all_status_5xx.
Prior change: CLI v10.8.7
Following change: CLI v10.8.8
