[ANNOUNCE] disable the /logs endpoint served by kube-apiserver

[zhongliang xiong]

Hi,

Kube-apiserver: `--enable-logs-handler` now defaults to false, which disables the `/logs` endpoint served by kube-apiserver. If serving log files within the `/var/log` filepath at the `/logs` endpoint is still desired, the functionality is now opt-in and must be enabled by explicitly setting `--enable-logs-handler=true`.

Please ref https://github.com/kubernetes/kubernetes/issues/77182  to get the context.

Thanks.