fix(monitor): add node_role label for k8s_node_status_ready

[xiaosuiba]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:

/kind bug

What this PR does / why we need it:
node_ready metrics chart in node monitoring is malfunctioning currently due to a lack of node_role label in k8s_node_status_ready. This pr will fix it by add node_role label to k8s_node_status_ready.
QL use in chart:

SELECT max(value) AS k8s_node_status_ready FROM global.autogen.k8s_node_status_ready WHERE node_role = 'Node' AND time >= '2021-06-10 05:58:52' AND time < '2021-06-10 06:58:52' GROUP BY time(1m), node

record in influxdb(before pr):

time	name	cluster_display_name	cluster_id	node	prometheus	prometheus_replica	tenant_id	value
1623133420405000000	k8s_node_status_ready	TKE	global	*****	kube-system/k8s	prometheus-k8s-0	default	1

record in influxdb(after pr):

time	name	cluster_display_name	cluster_id	node	node_role	prometheus	prometheus_replica	tenant_id	value
1623307900405000000	k8s_node_status_ready	TKE	global	*****	Node	kube-system/k8s	prometheus-k8s-0	default	1

Which issue(s) this PR fixes:

Fixes #1355

Special notes for your reviewer:
Currently I just copy the rule from 'k8s_node_status_ready_with_node_role', please check if it will affect something else.

Does this PR introduce a user-facing change?:

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.: