change to use GA kubelet OS label

jsonnet/kube-prometheus/alertmanager/alertmanager.libsonnet

...rometheus/kube-state-metrics/kube-state-metrics.libsonnet

...net/kube-prometheus/node-exporter/node-exporter.libsonnet

...rometheus/prometheus-adapter/prometheus-adapter.libsonnet

jsonnet/kube-prometheus/prometheus/prometheus.libsonnet