feat: add advanced_datapath_observability_config to monitoring_config

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feat: add a Pod IP Utilization API

Users can use `cluster describe` command to check the Pod IP ranges utilizations consumed by all the node pools within the same cluster. This percentage can be seen at cluster default Pod range, additional Pod ranges, and node pool level Pod ranges.

PiperOrigin-RevId: 547521835

Source-Link: googleapis/googleapis@1bd12d7

Source-Link: googleapis/googleapis-gen@cbb5fcc
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