move cert-manager and ingress-nginx from kubespray to separate modules, remove reset action and update observability template

pkg/kubespray/cluster.go

@@ -8,6 +8,6 @@ func UpgradeCluster(tags string) {
 	runPlaybook("kubespray/project/upgrade_cluster.yml", tags)
 }
 
-func ResetCluster() {
-	runPlaybook("kubespray/project/reset.yml", "reset")
+func ScaleCluster() {
+	runPlaybook("kubespray/project/scale.yml", "")
 }